Residential delivery area · Iowa
ZIP Code 52101: Decorah, IA
ZIP code 52101 uses the postal name Decorah, Iowa and lies mostly in Winneshiek County (97% of its land) with the rest in Allamakee County (Census 2020 ZIP-county file). About 13,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $73,484 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Decorah (2%) and Burr Oak (under 1%); 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Decorah · its only residential ZIP
- County
- Winneshiek County (97%); Allamakee County (3%)
- Census places
- Decorah (2%); Burr Oak (under 1%) census-designated place
- House district
- IA-2 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 316.7 sq mi · 40 people per sq mi
Where is ZIP code 52101?
52101 centers on 43.366°, -91.773° and covers 316.7 square miles of land plus 0.1 of water. It borders 11 ZIP codes: 52165, 52140, 55954, 52132, 55922, 55974, 52172, 52161, 52136, 55939 and more.
The map draws ZIP code areas only. For the streets inside 52101, 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 52101 compare with the rest of Winneshiek County?
| Measure | 52101 | In Winneshiek County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 12,706 | 1st of 12 | 65th of 970 |
| Median household income | $74k | 5th of 8 | 231st of 396 |
| Median home value | $273k | 2nd of 8 | 74th of 423 |
Its median household income is higher than in 52% of U.S. residential ZIP codes, and it is denser than 38% 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 52101?
The 2020 Census counted 13,186 people in 52101; the ACS, which samples households over 2020-2024, estimates 12,706. Between the 2010 and 2020 censuses its population fell 4.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 12,706
- 2020 Census count
- 13,186−4.9% since 2010 (13,864)
- Households
- 5,206
- Median age
- 44.0
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 52101?
Of the 12,706 people the ACS estimates in 52101, 15.3% are under 18 and 25.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.7%).
- Under 1815.3%
- 18 to 6459.7%
- 65 and older25.1%
- White, not Hispanic92.7%
- Other or two or more3.3%
- Hispanic or Latino2.5%
- Asian, not Hispanic0.8%
- Black, 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 52101 earn?
Median household income is $73,484 (ACS 2020-2024), the 5th highest of the 8 ranked ZIP codes in Winneshiek County. It fell from $81,775 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $73,484
- Income per person
- $42,545
- Below the poverty line
- 9.7%
- Unemployed (of the labor force)
- 3.1%
- Adults 25+ with a bachelor's degree
- 37.8%
- Adjusted gross income per tax return, 2022
- $89,7745,970 returns; wages 55% 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 52101?
FHFA's house price index for 52101, built from repeat sales and appraisals of the same homes, rose 73% from 2015 to 2025 and rose 53% from 2020 to 2025, and moved +3.8% in 2025.
- Median home value (owners' estimate)
- $273,200
- Median gross rent
- $883
- Homes owned by their occupants
- 70.5%
- Housing units
- 5,790
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 52101?
455 business establishments had a location in this ZIP code in 2023, 15 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade74
- Other services (except public administration)57
- Health care and social assistance55
- Construction48
- Accommodation and food services47
- Finance and insurance27
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 52101?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 52165 | Ridgeway | 1,098 | $85k | 11.8 mi |
| 52140 | Dorchester | 671 | $72k | 13.2 mi |
| 55954 | Mabel, MN | 1,332 | $66k | 13.2 mi |
| 52132 | Calmar | 1,759 | $101k | 13.3 mi |
| 55922 | Canton, MN | 818 | $63k | 14.9 mi |
| 55974 | Spring Grove, MN | 1,902 | $59k | 15.9 mi |
| 52172 | Waukon | 5,877 | $69k | 16.0 mi |
| 52161 | Ossian | 1,532 | $88k | 16.5 mi |
| 52136 | Cresco | 5,840 | $71k | 17.1 mi |
| 55939 | Harmony, MN | 1,973 | $71k | 19.9 mi |
| 52162 | Postville | 3,744 | $64k | 20.9 mi |
| 52168 | Spillville | 356 | $54k | 14.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.