Residential delivery area · Iowa
ZIP Code 52320: Olin, IA
ZIP code 52320 uses the postal name Olin, Iowa and lies mostly in Jones County (87% of its land) with the rest in Cedar County (Census 2020 ZIP-county file). About 1,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $62,222 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Olin; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Olin · its only residential ZIP
- County
- Jones County (87%); Cedar County (13%)
- Census places
- Olin
- Metro area
- Cedar Rapids, IA
- House district
- IA-1 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 58.1 sq mi · 25 people per sq mi
Where is ZIP code 52320?
52320 centers on 41.999°, -91.148° and covers 58.1 square miles of land plus 0.6 of water. It borders 7 ZIP codes: 52337, 52212, 52362, 52306, 52323, 52216, 52205.
The map draws ZIP code areas only. For the streets inside 52320, 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 52320 compare with the rest of Jones County?
| Measure | 52320 | In Jones County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,425 | 8th of 17 | 363rd of 970 |
| Median household income | $62k | 6th of 6 | 339th of 396 |
| Median home value | $131k | 9th of 9 | 360th of 423 |
Its median household income is higher than in 33% of U.S. residential ZIP codes, and it is denser than 29% 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 52320?
The 2020 Census counted 1,087 people in 52320; the ACS, which samples households over 2020-2024, estimates 1,425. Between the 2010 and 2020 censuses its population fell 9.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,425±324 (90% margin)
- 2020 Census count
- 1,087−9.6% since 2010 (1,203)
- Households
- 516
- 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 52320?
Of the 1,425 people the ACS estimates in 52320, 15.4% are under 18 and 15.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (78.5%).
- Under 1815.4%
- 18 to 6469.1%
- 65 and older15.6%
- White, not Hispanic78.5%
- Hispanic or Latino7.8%
- Other or two or more7.8%
- Black, not Hispanic5.3%
- Asian, not Hispanic0.6%
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 52320 earn?
Median household income is $62,222 (ACS 2020-2024), the 6th highest of the 6 ranked ZIP codes in Jones County. It is not measurably different from 2015-2019 ($60,254 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $62,222±$10,285
- Income per person
- $29,244
- Below the poverty line
- 12.4%
- Unemployed (of the labor force)
- 12.6%
- Adults 25+ with a bachelor's degree
- 20.9%
- Adjusted gross income per tax return, 2022
- $64,073480 returns; wages 74% 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 52320?
- Median home value (owners' estimate)
- $131,300
- Median gross rent
- $778
- Homes owned by their occupants
- 69.8%
- Housing units
- 581
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 52320?
20 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction3
- Finance and insurance3
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 52320?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 52337 | Stanwood | 729 | $67k | 8.1 mi |
| 52212 | Center Junction | 601 | $111k | 8.1 mi |
| 52362 | Wyoming | 816 | $73k | 8.5 mi |
| 52306 | Mechanicsville | 1,642 | $62k | 9.5 mi |
| 52323 | Oxford Junction | 942 | $41k | 10.1 mi |
| 52216 | Clarence | 1,551 | $68k | 10.2 mi |
| 52205 | Anamosa | 8,627 | $73k | 10.9 mi |
| 52312 | Morley | 46 | $37k | 5.0 mi (near) |
| 52305 | Martelle | 913 | $95k | 10.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.