Residential delivery area · Iowa
ZIP Code 50140: Lamoni, IA
ZIP code 50140 uses the postal name Lamoni, Iowa and lies mostly in Decatur County (69% of its land) with the rest in Ringgold County (Census 2020 ZIP-county file). About 2,800 people live there (Census Bureau, ACS 2020-2024). Median household income is $57,443 (Census Bureau, ACS 2020-2024). By Census place, 4% of its land lies in Lamoni; 96% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lamoni · its only residential ZIP
- County
- Decatur County (69%); Ringgold County (31%)
- Census places
- Lamoni
- House district
- IA-3 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 92.7 sq mi · 31 people per sq mi
Where is ZIP code 50140?
50140 centers on 40.634°, -93.993° and covers 92.7 square miles of land plus 0.8 of water. It borders 8 ZIP codes: 50067, 50133, 64442, 64426, 64458, 50065, 50854, 50108.
The map draws ZIP code areas only. For the streets inside 50140, 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 50140 compare with the rest of Decatur County?
| Measure | 50140 | In Decatur County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 2,842 | 1st of 11 | 211th of 970 |
| Median household income | $57k | 2nd of 2 | 373rd of 396 |
| Median home value | $122k | 1st of 1 | 377th of 423 |
Its median household income is higher than in 25% 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 50140?
The 2020 Census counted 2,503 people in 50140; the ACS, which samples households over 2020-2024, estimates 2,842. Between the 2010 and 2020 censuses its population fell 15.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,842
- 2020 Census count
- 2,503−15.7% since 2010 (2,969)
- Households
- 987
- Median age
- 30.3
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 50140?
Of the 2,842 people the ACS estimates in 50140, 19.6% are under 18 and 18.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (84.0%).
- Under 1819.6%
- 18 to 6462.1%
- 65 and older18.3%
- White, not Hispanic84.0%
- Other or two or more7.9%
- Black, not Hispanic3.4%
- Hispanic or Latino2.7%
- Asian, not Hispanic2.0%
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 50140 earn?
Median household income is $57,443 (ACS 2020-2024). It is not measurably different from 2015-2019 ($49,591 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $57,443±$7,496
- Income per person
- $28,524
- Below the poverty line
- 19.4%
- Unemployed (of the labor force)
- 4.9%
- Adults 25+ with a bachelor's degree
- 44.6%
- Adjusted gross income per tax return, 2022
- $52,772890 returns; wages 69% 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 50140?
FHFA's house price index for 50140, built from repeat sales and appraisals of the same homes, rose 63% from 2015 to 2025 and rose 62% from 2020 to 2025.
- Median home value (owners' estimate)
- $121,900
- Median gross rent
- $684
- Homes owned by their occupants
- 63.5%
- Housing units
- 1,112
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 50140?
67 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade14
- Accommodation and food services8
- Construction5
- Manufacturing5
- Finance and insurance5
- Professional, scientific, and technical services5
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 50140?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50067 | Decatur | 354 | $44k | 7.1 mi |
| 50133 | Kellerton | 528 | $58k | 7.5 mi |
| 64442 | Eagleville, MO | 951 | $62k | 9.5 mi |
| 64426 | Blythedale, MO | 530 | $88k | 10.7 mi |
| 64458 | Hatfield, MO | 159 | – | 11.5 mi |
| 50065 | Davis City | 517 | $49k | 11.6 mi |
| 50854 | Mount Ayr | 2,391 | $81k | 11.9 mi |
| 50108 | Grand River | 376 | $38k | 13.3 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.