Residential delivery area · Iowa
ZIP Code 52302: Marion, IA
ZIP code 52302 uses the postal name Marion, Iowa and lies entirely in Linn County (Census 2020 ZIP-county file). About 43,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $87,983 (Census Bureau, ACS 2020-2024). By Census place, 23% of its land lies in Marion, and 2% in smaller places; 75% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Marion · its only residential ZIP
- County
- Linn County
- Census places
- Marion
- Metro area
- Cedar Rapids, IA
- House district
- IA-2 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 74.3 sq mi · 574 people per sq mi
Where is ZIP code 52302?
52302 centers on 42.065°, -91.561° and covers 74.3 square miles of land plus 0.0 of water. It borders 9 ZIP codes: 52328, 52402, 52336, 52403, 52202, 52411, 52214, 52341, 52314.
The map draws ZIP code areas only. For the streets inside 52302, 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 52302 compare with the rest of Linn County?
| Measure | 52302 | In Linn County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 42,706 | 3rd of 29 | 6th of 970 |
| Median household income | $88k | 14th of 22 | 110th of 396 |
| Median home value | $244k | 11th of 23 | 103rd of 423 |
Its median household income is higher than in 71% of U.S. residential ZIP codes, and it is denser than 73% 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 52302?
The 2020 Census counted 43,130 people in 52302; the ACS, which samples households over 2020-2024, estimates 42,706. Between the 2010 and 2020 censuses its population grew 16.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 42,706
- 2020 Census count
- 43,130+16.6% since 2010 (36,980)
- Households
- 17,270
- Median age
- 40.9
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 52302?
Of the 42,706 people the ACS estimates in 52302, 25.1% are under 18 and 18.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.5%).
- Under 1825.1%
- 18 to 6456.4%
- 65 and older18.5%
- White, not Hispanic87.5%
- Other or two or more5.2%
- Hispanic or Latino2.7%
- Black, not Hispanic2.5%
- Asian, not Hispanic2.1%
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 52302 earn?
Median household income is $87,983 (ACS 2020-2024), the 14th highest of the 22 ranked ZIP codes in Linn County. It is not measurably different from 2015-2019 ($89,060 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $87,983
- Income per person
- $44,026
- Below the poverty line
- 8.0%
- Unemployed (of the labor force)
- 3.7%
- Adults 25+ with a bachelor's degree
- 38.2%
- Adjusted gross income per tax return, 2022
- $89,50920,660 returns; wages 71% 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 52302?
FHFA's house price index for 52302, built from repeat sales and appraisals of the same homes, rose 56% from 2015 to 2025 and rose 41% from 2020 to 2025, and moved +2.8% in 2025.
- Median home value (owners' estimate)
- $244,400
- Median gross rent
- $962
- Homes owned by their occupants
- 77.4%
- Housing units
- 18,422
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 52302?
804 business establishments had a location in this ZIP code in 2023, 24 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction119
- Retail trade100
- Health care and social assistance91
- Other services (except public administration)83
- Accommodation and food services77
- Professional, scientific, and technical services65
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 52302?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 52328 | Robins | 2,712 | $125k | 5.4 mi |
| 52402 | Cedar Rapids | 42,938 | $73k | 5.8 mi |
| 52336 | Springville | 2,397 | $92k | 6.1 mi |
| 52403 | Cedar Rapids | 22,551 | $75k | 6.9 mi |
| 52202 | Alburnett | 1,269 | $105k | 7.6 mi |
| 52411 | Cedar Rapids | 8,342 | $171k | 8.7 mi |
| 52214 | Central City | 2,761 | $87k | 8.9 mi |
| 52341 | Toddville | 1,378 | $91k | 8.9 mi |
| 52314 | Mount Vernon | 6,200 | $109k | 10.7 mi |
| 52233 | Hiawatha | 7,000 | $66k | 6.6 mi (near) |
| 52401 | Cedar Rapids | 2,181 | $35k | 8.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.