Thornburg, IA · standard
ZIP Code 50255
Keokuk County, Iowa — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 65
- 142/sq mi
- $39,722
- Median income
- 34.8%
- Bachelor's or higher
The verdict
Thornburg pairs one of the lowest household incomes in the country, in a rural, homeowner-dominated area.
- 5th pct
- household income, US ZIPs
- 142
- people per sq mi
- 100%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 50255 against every reporting US ZIP.
ZIP code 50255 is classified by USPS as a standard delivery area and covers roughly 0.5 square miles in Thornburg, Keokuk County, Iowa. The area is home to 65 residents, producing a population density of 142 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 50255 against Iowa and the nation.
On the economic side, the median household income for ZIP 50255 sits at $39,722 (48% below the Iowa average), while per-capita income is $28,943. The poverty rate stands at 7.8% and the unemployment rate at 15.4%. On housing, the median home value is — with median rent at — per month, and 100.0% of occupied units are owner-occupied, a direct signal of whether 50255 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 34.8% of adults hold a bachelor's degree or higher, the median age is 57.8, and the average commute is —. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Keokuk County, so you can benchmark 50255 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 50255, Thornburg, IA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
65
Population
0.5
Area (sq mi)
142
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 50255?
57.8
Median Age
51.0%
Male
49.0%
Female
0.0%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$39,722
Median Household Income
-48% vs state
$28,943
Per Capita Income
7.8%
Poverty Rate
15.4%
Unemployment Rate
How ZIP 50255 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$39,722 5th percentile higher than 5% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
26
Total Housing Units
26
Occupied Units
0
Vacant Units
1.96
Avg Household Size
Occupancy Type
1938
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Nearby ZIP Codes
Want a side-by-side? Compare 50255 vs 50136 →
ZIP 50255 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 52591
Sigourney (52591)
3,028 residents
- 50268 993
What Cheer (50268)
993 residents
- 52222 709
Deep River (52222)
709 residents
- 52550 585
Delta (52550)
585 residents
- 52586 521
Rose Hill (52586)
521 residents
- 50136 445
Keswick (50136)
445 residents
- 50027 285
Barnes City (50027)
285 residents
- 52355 277
Webster (52355)
277 residents
- 50104 128
Gibson (50104)
128 residents
What this shows Among its immediate neighbors, ZIP 50255 ranks #0 by population — useful context the national average alone can't give.
ZIP 50255 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 52222
Deep River (52222)
$81,964 median income
- 50136
Keswick (50136)
$75,625 median income
- 52355
Webster (52355)
$63,750 median income
- 52591
Sigourney (52591)
$62,404 median income
- 50268
What Cheer (50268)
$59,118 median income
- 52550
Delta (52550)
$57,745 median income
- 50104
Gibson (50104)
$55,625 median income
- 52586
Rose Hill (52586)
$53,125 median income
- 50027
Barnes City (50027)
$52,976 median income
What this shows By household income, ZIP 50255 ranks #null of 9 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 50136 | Keswick, IA | 445 | 2.4 mi |
| 50268 | What Cheer, IA | 993 | 3.7 mi |
| 50104 | Gibson, IA | 128 | 3.5 mi |
| 52222 | Deep River, IA | 709 | 8.1 mi |
| 52355 | Webster, IA | 277 | 7.7 mi |
| 50027 | Barnes City, IA | 285 | 7.4 mi |
| 52550 | Delta, IA | 585 | 9.9 mi |
| 52586 | Rose Hill, IA | 521 | 10.4 mi |
| 52591 | Sigourney, IA | 3,028 | 11.8 mi |
More ZIP Codes in Keokuk County
Related Areas
Frequently Asked Questions
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ZIP Code Research Guides
Official Data Resources for Thornburg, IA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.