Residential delivery area · Iowa
ZIP Code 50129: Jefferson, IA
ZIP code 50129 uses the postal name Jefferson, Iowa and lies entirely in Greene County (Census 2020 ZIP-county file). About 5,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $60,671 (Census Bureau, ACS 2020-2024). By Census place, 4% of its land lies in Jefferson; 96% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Jefferson · its only residential ZIP
- County
- Greene County
- Census places
- Jefferson
- House district
- IA-3 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 165.4 sq mi · 30 people per sq mi
Where is ZIP code 50129?
50129 centers on 42.013°, -94.377° and covers 165.4 square miles of land plus 0.6 of water. It borders 8 ZIP codes: 50107, 51462, 50235, 50064, 50026, 50128, 50050, 50217.
The map draws ZIP code areas only. For the streets inside 50129, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 50129 compare with the rest of Greene County?
| Measure | 50129 | In Greene County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 5,014 | 2nd of 13 | 146th of 970 |
| Median household income | $61k | 4th of 4 | 361st of 396 |
| Median home value | $166k | 1st of 4 | 271st of 423 |
Its median household income is higher than in 30% of U.S. residential ZIP codes, and it is denser than 33% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 50129?
The 2020 Census counted 5,040 people in 50129; the ACS, which samples households over 2020-2024, estimates 5,014. Between the 2010 and 2020 censuses its population fell 3.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 5,014
- 2020 Census count
- 5,040−3.6% since 2010 (5,228)
- Households
- 2,369
- Median age
- 49.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 50129?
Of the 5,014 people the ACS estimates in 50129, 18.7% are under 18 and 29.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (94.5%).
- Under 1818.7%
- 18 to 6452.0%
- 65 and older29.3%
- White, not Hispanic94.5%
- Hispanic or Latino2.9%
- Other or two or more2.4%
- Black, not Hispanic0.2%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 50129 earn?
Median household income is $60,671 (ACS 2020-2024), the 4th highest of the 4 ranked ZIP codes in Greene County. It is not measurably different from 2015-2019 ($61,032 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $60,671
- Income per person
- $39,802
- Below the poverty line
- 7.7%
- Unemployed (of the labor force)
- 0.9%
- Adults 25+ with a bachelor's degree
- 22.6%
- Adjusted gross income per tax return, 2022
- $80,7442,400 returns; wages 53% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 50129?
FHFA's house price index for 50129, built from repeat sales and appraisals of the same homes, rose 108% from 2015 to 2025 and rose 55% from 2020 to 2025, and moved +1.4% in 2025.
- Median home value (owners' estimate)
- $166,100
- Median gross rent
- $760
- Homes owned by their occupants
- 77.0%
- Housing units
- 2,571
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 50129?
176 business establishments had a location in this ZIP code in 2023, 11 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)28
- Health care and social assistance27
- Retail trade25
- Construction16
- Professional, scientific, and technical services16
- Accommodation and food services16
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 50129?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50107 | Grand Junction | 764 | $69k | 8.3 mi |
| 51462 | Scranton | 1,049 | $69k | 9.2 mi |
| 50235 | Rippey | 431 | $90k | 9.6 mi |
| 50064 | Dana | 100 | $97k | 10.1 mi |
| 50026 | Bagley | 481 | $69k | 11.3 mi |
| 50128 | Jamaica | 330 | $61k | 11.6 mi |
| 50050 | Churdan | 712 | $64k | 12.0 mi |
| 50217 | Paton | 561 | $67k | 13.4 mi |
| 50031 | Beaver | 51 | $74k | 12.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.