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Carbon, IA
City in Adams County, Iowa. ZIP codes: 50839.
Population
46
Land area
0.8sq mi
People per sq mi
61
ZIP codes
1
Carbon and its ZIP codes
Economy and federal money
Jobs, pay, income and spending are for Adams County. PPP loans are for Carbon.
Unemployment rate
3.2%
Aug 2026, +0.7 pts in a year
Average annual pay
$50,936
1,168 jobs, 2025
Income per person
$63,791
BEA, 2024
Federal spending
$29.9M
FY 2026, $8,067 per person
Environment and hazard risk
Carbon, IA, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: drought
Storm events since 1996
399
Countywide, mostly hail
Flood insurance policies
2
0.1% of homes, county
July high / Jan low
85° / 12°F
35.3 inches of rain a year
ZIP codes in Carbon
1 in or overlapping Carbon. Population shown
Cities near Carbon
| Name | Distance | Land area (sq mi) |
|---|---|---|
| CorningCity | 6 mi | 1.6 |
| NodawayCity | 8.9 mi | 0.7 |
| GrantCity | 10 mi | 0.7 |
| PrescottCity | 11 mi | 0.4 |
| VilliscaCity | 11 mi | 1.8 |
| MassenaCity | 14 mi | 0.7 |
| StantonCity | 15 mi | 0.9 |
| CumberlandCity | 16 mi | 0.6 |
| BridgewaterCity | 16 mi | 0.3 |
| LenoxCity | 18 mi | 1.9 |
| ElliottCity | 19 mi | 0.4 |
| CromwellCity | 19 mi | 0.3 |
| SharpsburgCity | 20 mi | 0.4 |
| KentCensus-designated place | 20 mi | 0.5 |
| GravityCity | 21 mi | 0.3 |
| GriswoldCity | 21 mi | 0.6 |
Frequently asked questions
- What county is Carbon, IA in?
- Carbon is in Adams County, Iowa.
- What ZIP codes are in Carbon, IA?
- ZIP codes in or overlapping Carbon include 50839.
- What is the population of Carbon, IA?
- About 46 people live in Carbon, based on American Community Survey 5-year estimates.
- What cities are near Carbon?
- Nearby places include Corning (6 mi), Nodaway (8.9 mi), Grant (10 mi), Prescott (11 mi), Villisca (11 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023