Population & age
- Total population
- 56
- Median age
- 60.0
Thornburg, IA (50255)
Keokuk County · Population 56
Fresh.Data current as of Apr 27, 2026
Thornburg, IA (ZIP 50255) sits in Keokuk County. The page draws on 1 federal data feed retrieved Apr 27. Health-survey coverage is limited for this ZIP. NCES lists 3 schools serving the area, 3 non-charter. 3 colleges and universities serve the area, with median in-state tuition of $20,988. BLS QCEW reports average annual pay of $47,453 per worker, roughly 28% below the US average. The CDC SVI flags household composition (75th percentile) as this ZIP's standout vulnerability dimension, sitting well above its overall 36th-percentile score. FEMA has issued 19 federal disaster declarations affecting this ZIP since 1965. Only 5.0% of residents under 65 are uninsured (County Health Rankings, 2025) — well below the national county median. 25.4% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. IRS migration data (2022-2023) shows a net loss of 123 residents (57 households) — the ZIP's primary county is shrinking. Both healthcare access and on-paper school density skew lighter than national norms; what shows up here is a snapshot, not a verdict — neighborhood-level texture matters at this scale. Notable: median household income $50,556, fair market rent of $1,070 for a two-bedroom, and a median home value of $22,000. Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
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Demographics
Race & ethnicity
- White
- 100.0%
- Black
- 0.0%
- Asian
- 0.0%
- Hispanic / Latino
- 16.1%
Income & housing
- Median household income
- $50,556
- Median home value
- $22,000
Education
- Bachelor's degree or higher (age 25+)
- 25.5%
Employment
- Unemployment rate
- 20.0%
Housing
- Owner-occupied
- 30(100.0%)
- Renter-occupied
- 0(0.0%)
- Vacant units
- 0
- Built (median)
- 1938
Commute
- Public transit
- 0(0.0%)
- Work from home
- 0(0.0%)
- Avg commute
- 37.3 min
Economic wellbeing
- Below poverty line
- 3(5.4%)
- Uninsured
- 0(0.0%)
Digital access
- Broadband access
- 24(80.0%)
- No broadband
- 6(20.0%)
Language & nativity
- Foreign-born
- 0(0.0%)
- Non-English at home
- 0(0.0%)
Fair Market Rent
Fresh.HUD SAFMR · May 1, 2026Studio
$790
/month
1 Bed
$890
/month
2 Bed
$1,070
/month
3 Bed
$1,370
/month
4 Bed
$1,430
/month
HUD Fair Market Rents represent the 40th percentile of standard-quality rental housing in this area. FY2026 data.
New housing construction
New housing units permitted
1
Across 1 permitted buildings. Total construction value: $320,700.
Single-family
1
100% of total units
Multifamily (2+ unit)
0
0% of total units
Single-family value
$320,700
construction value
Multifamily value
$0
construction value
Based on county-level data (2024).
Source: U.S. Census Bureau Building Permits Survey (census.gov/construction/bps). Public domain. BPS reports annual residential building permits from local permit-issuing jurisdictions, aggregated to county. A permit reflects intent to build, not a completed unit — actual construction lags by 6-24 months for multifamily projects.
Employment & wages
Average annual pay
$47,453
Average weekly wage
$913
Total employment
2,292
Total establishments
316
That is roughly 28% below the US national average of $65,470 per worker.
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (bls.gov/cew). Public domain. QCEW is derived from state unemployment-insurance filings and covers ~95% of US jobs. Figures are county-level totals assigned to ZIPs whose primary county matches; small-employer cells are suppressed by BLS to protect employer confidentiality.
Unemployment
Unemployment rate
3.2%
That is 0.8 percentage points below the US national unemployment rate of about 4.0%.
Labor force
5,285
Employed
5,118
Unemployed
167
Based on Keokuk County, IA data (2024).
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics (bls.gov/lau). Public domain. LAUS publishes monthly and annual labor-force estimates for every US county. Figures are county-level totals assigned to ZIPs whose primary county matches.
Federal Disaster Declarations
Federally Declared Disasters
19
Date Range
1965–2020
Most Recent Declaration
COVID-19 PANDEMIC
Biological — declared March 23, 2020 (DR-4483)
Incident period: January 20, 2020 – May 11, 2023
Top Incident Types
- Flood8 (42%)
- Severe Storm7 (37%)
- Biological2 (11%)
- Severe Ice Storm1 (5%)
- Hurricane1 (5%)
Individual Assistance
8
Direct help to disaster survivors
Households Program
2
Housing & temporary lodging support
Public Assistance
18
Repair of public facilities & roads
Hazard Mitigation
9
Funding to reduce future disaster risk
FEMA declares disasters at the county level; counts here include every federally declared disaster touching any county that overlaps this ZIP. Statewide declarations and pre-1964 records without county granularity are excluded. Program flags reflect which FEMA assistance categories were activated (Individual Assistance, Households, Public Assistance, Hazard Mitigation). Source: fema.gov/openfema. Public domain.
Climate
30-year averages (1991-2020) from the nearest GHCN-D weather station. Temperature and precipitation values reflect typical annual conditions, not any single year.
Avg. temperature
48.2°F
37.5° – 58.9°
Annual precipitation
37.7"
Annual snowfall
28.1"
Heating · cooling days
6,866.1 · 784.7
Annual base 65°F
Nearest station: WILLIAMSBURG 1E, IA US, 22.5 miles from the centroid of Thornburg, IA (ZIP 50255)
Source: NOAA National Centers for Environmental Information, 1991–2020 U.S. Climate Normals (ncei.noaa.gov). Public domain.
Community health profile
Years of potential life lost (per 100K)
8,349
That tracks the national county median of about 8,200 years per 100,000.
Premature death is the headline composite outcome CHR reports — age-adjusted, all-cause, before age 75.
Fair or poor health
16%
of adults self-report
Poor physical health days
4.0
avg per adult per month
Poor mental health days
5.0
avg per adult per month
Uninsured
5.0%
of residents under 65
Primary care MDs
10
per 100,000 residents
Preventable hospital stays
1,948
per 100K Medicare enrollees
Food environment (0-10)
8.0
10 = best access & security
Exercise access
36%
residents near a facility
Flu vaccinated
39%
of Medicare enrollees
Low birth weight (under 2,500 g) accounts for 6.5% of live births in this county — an early-life health input that downstream outcomes track against.
Based on Keokuk data (2025 CHR release).
Source: County Health Rankings & Roadmaps, University of Wisconsin Population Health Institute (countyhealthrankings.org). Annual release. Underlying source datasets vary by measure (CDC BRFSS, NCHS Vital Statistics, AHA, USDA Food Environment Atlas, and others). Figures are county-level and assigned to every ZIP whose primary county matches.
Food access
Food access status
Significant food access concerns
25.4% of Keokuk County, IA residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
0.30
per 1,000 residents
Supercenters & clubs
—
per 1,000 residents
SNAP-authorized stores
0.90
accepting food benefits
Fast-food restaurants
0.40
per 1,000 residents
Among low-income residents, 7.7% are low-access — those without a supermarket within 1 mile (urban) or 10 miles (rural).
Per-1,000 figures show how many of each store type exist in Keokuk County, IA for every 1,000 residents. Higher grocery and supercenter density usually means easier access to fresh food; higher convenience-store-only density (with low grocery rate) often signals a food swamp.
Source: USDA Economic Research Service, Food Environment Atlas (ers.usda.gov). County-level metrics fanned to ZIP via the primary county in the Census ZCTA-county relationship file. Variable years differ per family (stores ~2020, low-access ~2019).
Safety
FBI publishes crime data at the county level. Numbers below cover the primary county that contains this ZIP. Rates are per 100,000 residents in the area covered by reporting agencies.
Violent crime rate
—
per 100K residents · 12 reports
Property crime rate
—
per 100K residents · 36 reports
Homicide
0
Robbery
0
Burglary
13
Vehicle theft
6
County-level data for Keokuk (2024)
Source: U.S. Federal Bureau of Investigation, Uniform Crime Reporting Program (cde.ucr.cjis.gov). Public domain. Coverage varies by reporting agency; areas with partial agency coverage may understate true crime totals.
Who’s moving in and out
Net migration (2022-2023)
▼−123 people
−57 households • −$2.3M net AGI flow
Moved in
189households
312 people • $8.7M AGI
Moved out
246households
435 people • $10.9M AGI
Where new residents came from
- Wapello County, IA — 34 households
- Washington County, IA — 28 households
- Mahaska County, IA — 22 households
Where departing residents went
- Washington County, IA — 31 households
- Mahaska County, IA — 28 households
- Wapello County, IA — 25 households
Incoming households reported an average AGI of $45,905 versus departing households' $44,463.
Source: U.S. Internal Revenue Service, Statistics of Income, Migration Data (irs.gov). Public domain. Migration is measured by year-over-year changes in the address on individual tax returns; figures are county-level totals attributed to ZIPs whose primary county matches. Foreign migration contributes to inflow/outflow totals but does not appear in the top-county lists. Small flows are suppressed by IRS to protect taxpayer confidentiality.
Taxes & benefits in Iowa
State-level rules that apply to every resident of ZIP 50255. Numbers reflect the most recent published year per source.
Tax rates
Income tax
Yes
graduated
Sales tax (combined)
6.94%
State 6.00% · avg local 0.94%
Property tax (effective)
1.54%
Median $1,695/year
Tax burden rank
37 of 50
11.00% of personal income
For ZIP 50255: Applied to this ZIP's typical home value of $22,000, that works out to roughly $340/year in property tax.
Paid family leave
Program
No program
No program
Safety net
SNAP eligibility
160% FPL
Broad-Based Categorical Eligibility (raises gross income limit above federal 130% floor). Asset limit $15,000.
Sources: Tax Foundation (state tax rates & brackets), Bipartisan Policy Center (paid family leave), USDA FNS (SNAP categorical eligibility).
Other ZIPs near 50255
Nearby ZIPs by distance
50136 (Keswick, 2.2 mi) · 50268 (What Cheer, 3.7 mi) · 50104 (Gibson, 4 mi) · 52355 (Webster, 7.3 mi) · 50027 (Barnes City, 7.3 mi) · 52222 (Deep River, 8.3 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
Data sources used on this page
All data on this page is sourced from federal government datasets · Not AI-generated · Methodology
Schools in this ZIP
3 schools serve this ZIP, including 3 non-charter.
| School | Type | Grades | Enrollment |
|---|---|---|---|
| Tri-County Elementary School | Public | -1–6 | 118 |
| Tri-County JR/SR High School | Public | 7–12 | 110 |
| Tri-County Junior High School | Public | — | — |
Schools listed from NCES Common Core of Data via the Urban Institute Education Data Portal.
Fresh.NCES CCD via Urban Institute EDP · Apr 27, 2026Colleges & universities nearby
Colleges in this area
3
Median in-state tuition
$20,988
Median earnings (10 yr)
$45,225
- 4-Year
Central College
Pella, IA · 50219
- In-state tuition
- $20,988
- Out-of-state tuition
- $20,988
- Acceptance rate
- 86.2%
- Graduation rate
- 67.8%
- Median earnings (10 yr)
- $54,317
- Median student debt
- $26,984
- Certificate
Aveda Institute-Des Moines
West Des Moines, IA · 50266
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 92.9%
- Median earnings (10 yr)
- $36,132
- Median student debt
- $8,461
- 4-Year
Des Moines University-Osteopathic Medical Center
West Des Moines, IA · 50266
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- —
- Median earnings (10 yr)
- —
- Median student debt
- —
Source: U.S. Department of Education College Scorecard (collegescorecard.ed.gov). Public domain data. Earnings figures reflect median earnings 10 years after entry for federally-aided students.
What these numbers say together
Thornburg, IA (ZIP 50255) sits in Keokuk County. The page draws on 1 federal data feed retrieved Apr 27. Health-survey coverage is limited for this ZIP. NCES lists 3 schools serving the area, 3 non-charter. 3 colleges and universities serve the area, with median in-state tuition of $20,988. BLS QCEW reports average annual pay of $47,453 per worker, roughly 28% below the US average. The CDC SVI flags household composition (75th percentile) as this ZIP's standout vulnerability dimension, sitting well above its overall 36th-percentile score. FEMA has issued 19 federal disaster declarations affecting this ZIP since 1965. Only 5.0% of residents under 65 are uninsured (County Health Rankings, 2025) — well below the national county median. 25.4% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. IRS migration data (2022-2023) shows a net loss of 123 residents (57 households) — the ZIP's primary county is shrinking. Both healthcare access and on-paper school density skew lighter than national norms; what shows up here is a snapshot, not a verdict — neighborhood-level texture matters at this scale. Notable: median household income $50,556, fair market rent of $1,070 for a two-bedroom, and a median home value of $22,000. Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
Both surfaces skew lighter than national averages. That isn’t a verdict — small-area estimates compress real neighborhood-level texture, and a single ZIP reading can miss a district line or a hospital corridor sitting just outside it. Treat this as a starting point for fieldwork, not a conclusion.
Each figure on this page links to the original federal dataset with its retrieval date — this synthesis is a reading, not a substitute for the underlying records.
Frequently Asked Questions — ZIP 50255
How many schools are in ZIP 50255?
3 schools serve this ZIP, including 3 public schools (NCES CCD, retrieved Apr 27, 2026). No charter schools are listed in this ZIP by NCES CCD.
Does ZIP 50255 have charter schools?
No charter schools are listed in ZIP 50255 by NCES CCD (retrieved Apr 27, 2026).
Are there high schools in ZIP 50255?
Yes, 1 high school serves this ZIP: Tri-County Jr/Sr High School. (NCES CCD, retrieved Apr 27, 2026).
What is the population of ZIP 50255?
56 people live in ZIP 50255, with a median age of 60.0 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the median household income in ZIP 50255?
$50,556 per year (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
Is ZIP 50255 mostly renters or homeowners?
In ZIP 50255, 100.0% of occupied housing units are owner-occupied and 0.0% are renter-occupied (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How do people commute in ZIP 50255?
In ZIP 50255, 0.0% of workers work from home. Public transit is used by 0.0% of commuters (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the poverty rate in ZIP 50255?
5.4% of the population in ZIP 50255 lives below the federal poverty line (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What percentage of households in ZIP 50255 have broadband internet?
80.0% of households in ZIP 50255 have broadband internet access (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How vulnerable is ZIP 50255 to disasters and public health emergencies?
According to the CDC Social Vulnerability Index (2022), ZIP 50255 ranks in the 36th percentile nationally for social vulnerability — a moderate vulnerability profile (retrieved May 3, 2026).
What is the biggest vulnerability factor in ZIP 50255?
Household Characteristics is the highest-scoring CDC SVI theme for ZIP 50255, ranking in the 75th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
How many federally declared disasters has ZIP 50255 experienced?
FEMA has recorded 19 federal disaster declarations affecting ZIP 50255 between 1965–2020 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
What kinds of disasters most often hit ZIP 50255?
Flood is the most common federally declared disaster type affecting ZIP 50255, accounting for 8 of 19 declarations (42%, FEMA OpenFEMA, retrieved May 3, 2026).
What was the most recent disaster declared for ZIP 50255?
The most recent FEMA disaster declaration affecting ZIP 50255 was "COVID-19 PANDEMIC" — a biological declared in 2020 (DR-4483) (FEMA OpenFEMA, retrieved May 3, 2026).
What colleges are near ZIP 50255?
3 colleges and universities are listed near ZIP 50255 by the U.S. Department of Education College Scorecard, including Central College, Aveda Institute-Des Moines, and Des Moines University-Osteopathic Medical Center (retrieved May 2, 2026).
What is the average tuition at colleges near ZIP 50255?
Median in-state tuition across 3 nearby institutions is $20,988 (College Scorecard, retrieved May 2, 2026).
What do graduates earn from colleges near ZIP 50255?
Graduates of nearby colleges earn a median of $45,225 ten years after entry (College Scorecard, retrieved May 2, 2026).
What is the climate like in ZIP 50255?
ZIP 50255 has an average annual temperature of 48.2°F and 37.7" of annual precipitation based on the WILLIAMSBURG 1E, IA US weather station 22.5 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
What taxes apply in ZIP 50255?
Iowa has a graduated income tax with a top rate of unspecified. Combined sales tax: 6.94% (Tax Foundation 2025).
Does Iowa have paid family leave?
Iowa has no state paid family leave program (Bipartisan Policy Center 2026).
What data is available for ZIP 50255?
This page covers school information from NCES CCD (3 schools), demographics from the Census ACS 5-Year (2022), colleges from the U.S. Department of Education College Scorecard (3 institutions), social vulnerability scores from the CDC/ATSDR SVI (2022), federal disaster declarations from FEMA OpenFEMA (19 on record), climate normals from NOAA NCEI (1991-2020), county-level crime data from the FBI Crime Data Explorer (2024), and state-level tax rates from the Tax Foundation. Data is refreshed on Mubboo's standard schedule.
How current is this data?
School data retrieved Apr 27, 2026 from NCES CCD. Demographics retrieved Apr 30, 2026 from Census ACS 5-Year (2022). College data retrieved May 2, 2026 from U.S. Dept of Education College Scorecard. Social vulnerability scores retrieved May 3, 2026 from CDC/ATSDR SVI (2022). Federal disaster declarations retrieved May 3, 2026 from FEMA OpenFEMA (19 on record). Climate normals retrieved May 8, 2026 from NOAA NCEI (1991-2020). County-level crime data retrieved May 4, 2026 from the FBI Crime Data Explorer (2024). State-level tax rates retrieved 2026-05-05 15:58:22.284+00 from the Tax Foundation.
Other ZIPs near 50255
Nearby ZIPs by distance
50136 (Keswick, 2.2 mi) · 50268 (What Cheer, 3.7 mi) · 50104 (Gibson, 4 mi) · 52355 (Webster, 7.3 mi) · 50027 (Barnes City, 7.3 mi) · 52222 (Deep River, 8.3 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
More Info topics
Have a specific question about ZIP 50255?
Ask Mubboo — launching Q4 2026.
Data refreshed via Mubboo's ETL pipeline; oldest source on this page retrieved Apr 27, 2026.
Social Vulnerability Index
Overall SVI
36th percentile
Moderate Vulnerability
Based on 1 census tract, population 3
Vulnerability Themes
Persons with Disability
1
Adults Age 65+
1
The Social Vulnerability Index uses U.S. Census data to identify communities most at risk during public health emergencies and natural disasters. Higher percentiles indicate greater vulnerability. Tract-level scores are aggregated to this ZCTA via Census 2020 ZCTA→Tract crosswalk, weighted by land-area share. Source: atsdr.cdc.gov. Public domain.