Residential delivery area · Iowa
ZIP Code 50158: Marshalltown, IA
ZIP code 50158 uses the postal name Marshalltown, Iowa and lies mostly in Marshall County (99% of its land) with the rest in Tama County (Census 2020 ZIP-county file). About 31,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $70,367 (Census Bureau, ACS 2020-2024). By Census place, 9% of its land lies in Marshalltown; 91% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Marshalltown · its only residential ZIP
- County
- Marshall County (99%); Tama County (1%)
- Census places
- Marshalltown
- Micro area
- Marshalltown, IA
- House districts
- IA-4 (99%), IA-2 (1%) 119th Congress, by share of land
- State
- Iowa
- Time zone
- Central
- Land area
- 212.2 sq mi · 148 people per sq mi
Where is ZIP code 50158?
50158 centers on 42.050°, -92.901° and covers 212.2 square miles of land plus 0.2 of water. It borders 12 ZIP codes: 50142, 50078, 50005, 50120, 50148, 50632, 50173, 50162, 50106, 50141 and more.
The map draws ZIP code areas only. For the streets inside 50158, 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 50158 compare with the rest of Marshall County?
| Measure | 50158 | In Marshall County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 31,396 | 1st of 21 | 18th of 970 |
| Median household income | $70k | 7th of 7 | 267th of 396 |
| Median home value | $141k | 7th of 9 | 347th of 423 |
Its median household income is higher than in 47% of U.S. residential ZIP codes, and it is denser than 59% 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 50158?
The 2020 Census counted 31,466 people in 50158; the ACS, which samples households over 2020-2024, estimates 31,396. Between the 2010 and 2020 censuses its population fell 0.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 31,396
- 2020 Census count
- 31,466−0.4% since 2010 (31,591)
- Households
- 11,788
- Median age
- 37.2
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 50158?
Of the 31,396 people the ACS estimates in 50158, 26.1% are under 18 and 17.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (58.8%), then Hispanic or Latino (30.6%).
- Under 1826.1%
- 18 to 6456.3%
- 65 and older17.6%
- White, not Hispanic58.8%
- Hispanic or Latino30.6%
- Asian, not Hispanic4.4%
- Other or two or more4.3%
- Black, 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 50158 earn?
Median household income is $70,367 (ACS 2020-2024), the 7th highest of the 7 ranked ZIP codes in Marshall County. It is not measurably different from 2015-2019 ($67,017 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $70,367
- Income per person
- $31,708
- Below the poverty line
- 12.8%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 21.3%
- Adjusted gross income per tax return, 2022
- $65,48213,900 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 50158?
FHFA's house price index for 50158, built from repeat sales and appraisals of the same homes, rose 68% from 2015 to 2025 and rose 44% from 2020 to 2025, and moved +1.3% in 2025.
- Median home value (owners' estimate)
- $140,700
- Median gross rent
- $892
- Homes owned by their occupants
- 71.6%
- Housing units
- 12,831
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 50158?
661 business establishments had a location in this ZIP code in 2023, 15 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance100
- Retail trade95
- Other services (except public administration)83
- Construction73
- Accommodation and food services71
- Finance and insurance41
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 50158?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50142 | Le Grand | 720 | $76k | 7.1 mi |
| 50078 | Ferguson | 85 | $53k | 7.9 mi |
| 50005 | Albion | 812 | $77k | 8.9 mi |
| 50120 | Haverhill | 428 | $143k | 9.1 mi |
| 50148 | Liscomb | 406 | $84k | 10.3 mi |
| 50632 | Garwin | 1,201 | $72k | 10.6 mi |
| 50173 | Montour | 705 | $96k | 11.3 mi |
| 50162 | Melbourne | 1,164 | $71k | 11.8 mi |
| 50106 | Gilman | 1,163 | $101k | 12.6 mi |
| 50141 | Laurel | 587 | $78k | 12.8 mi |
| 50609 | Beaman | 377 | $90k | 13.2 mi |
| 50051 | Clemons | 224 | $60k | 13.7 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.