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Thornburg, IA
City in Keokuk County, Iowa. ZIP codes: 50255.
Population
55
Land area
0.2sq mi
People per sq mi
276
ZIP codes
1
Thornburg and its ZIP codes
Thornburg at a glance
- Thornburg is about 4.8 times as dense as Iowa as a whole.
Local data for Thornburg, IA
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Keokuk County. PPP loans are for Thornburg.
Unemployment rate
3.1%
Aug 2026, -0.8 pts in a year
Average annual pay
$49,571
2,280 jobs, 2025
Income per person
$58,399
BEA, 2024
Federal spending
$63.08M
FY 2026, $6,287 per person
Environment and hazard risk
Thornburg, IA, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: drought
Storm events since 1996
421
Countywide, mostly thunderstorm wind
Flood insurance policies
4
0.0% of homes, county
July high / Jan low
85° / 12°F
37.4 inches of rain a year
ZIP codes in Thornburg
1 in or overlapping Thornburg. Population shown
Cities near Thornburg
| Name | Distance | Land area (sq mi) |
|---|---|---|
| GibsonCity | 3.5 mi | 0.1 |
| What CheerCity | 4.1 mi | 1.2 |
| KeswickCity | 4.9 mi | 0.4 |
| Barnes CityCity | 7.9 mi | 0.6 |
| WebsterCity | 8.6 mi | 0.3 |
| Deep RiverCity | 8.8 mi | 0.4 |
| DeltaCity | 9.1 mi | 1 |
| SigourneyCity | 11 mi | 2.2 |
| Rose HillCity | 12 mi | 0.1 |
| MillersburgCity | 12 mi | 0.1 |
| South EnglishCity | 13 mi | 0.3 |
| MontezumaCity | 13 mi | 2.5 |
| GuernseyCity | 13 mi | 0.6 |
| North EnglishCity | 14 mi | 0.6 |
| HayesvilleCity | 14 mi | 0.3 |
| Keomah VillageCity | 16 mi | 0.1 |
Frequently asked questions
- What county is Thornburg, IA in?
- Thornburg is in Keokuk County, Iowa.
- What ZIP codes are in Thornburg, IA?
- ZIP codes in or overlapping Thornburg include 50255.
- What is the population of Thornburg, IA?
- About 55 people live in Thornburg, based on American Community Survey 5-year estimates.
- What cities are near Thornburg?
- Nearby places include Gibson (3.5 mi), What Cheer (4.1 mi), Keswick (4.9 mi), Barnes City (7.9 mi), Webster (8.6 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023