Residential delivery area · Iowa
ZIP Code 51027: Ireton, IA
ZIP code 51027 uses the postal name Ireton, Iowa and lies mostly in Sioux County (84% of its land) with the rest in Plymouth County (Census 2020 ZIP-county file). About 1,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $100,893 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Ireton; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Ireton · its only residential ZIP
- County
- Sioux County (84%); Plymouth County (16%)
- Census places
- Ireton
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 90.0 sq mi · 14 people per sq mi
Where is ZIP code 51027?
51027 centers on 42.966°, -96.328° and covers 90.0 square miles of land. It borders 5 ZIP codes: 51036, 51023, 51250, 51031, 51001.
The map draws ZIP code areas only. For the streets inside 51027, 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 51027 compare with the rest of Sioux County?
| Measure | 51027 | In Sioux County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,280 | 12th of 19 | 395th of 970 |
| Median household income | $101k | 2nd of 12 | 57th of 396 |
| Median home value | $227k | 8th of 14 | 126th of 423 |
Its median household income is higher than in 82% of U.S. residential ZIP codes, and it is denser than 21% 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 51027?
The 2020 Census counted 1,302 people in 51027; the ACS, which samples households over 2020-2024, estimates 1,280. Between the 2010 and 2020 censuses its population grew 3.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,280±432 (90% margin)
- 2020 Census count
- 1,302+3.3% since 2010 (1,260)
- Households
- 415
- Median age
- 36.8
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 51027?
Of the 1,280 people the ACS estimates in 51027, 34.4% are under 18 and 10.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.9%).
- Under 1834.4%
- 18 to 6455.3%
- 65 and older10.3%
- White, not Hispanic91.9%
- Hispanic or Latino7.3%
- Other or two or more0.9%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 51027 earn?
Median household income is $100,893 (ACS 2020-2024), the 2nd highest of the 12 ranked ZIP codes in Sioux County. It is not measurably different from 2015-2019 ($82,481 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $100,893±$20,008
- Income per person
- $36,551
- Below the poverty line
- 8.1%
- Unemployed (of the labor force)
- 0.3%
- Adults 25+ with a bachelor's degree
- 28.6%
- Adjusted gross income per tax return, 2022
- $87,285540 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 51027?
- Median home value (owners' estimate)
- $227,200
- Median gross rent
- $1,094
- Homes owned by their occupants
- 82.7%
- Housing units
- 516
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 51027?
46 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in transportation and warehousing (ZIP Code Business Patterns).
- Transportation and warehousing9
- Other services (except public administration)9
- Construction8
- Retail trade4
- Wholesale trade3
- Accommodation and food services3
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 51027?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51036 | Maurice | 445 | $123k | 7.0 mi |
| 51023 | Hawarden | 3,473 | $80k | 7.4 mi |
| 51250 | Sioux Center | 9,970 | $94k | 10.6 mi |
| 51031 | Le Mars | 12,808 | $77k | 13.3 mi |
| 51001 | Akron | 2,342 | $75k | 14.0 mi |
| 51011 | Chatsworth | 54 | $44k | 10.0 mi (near) |
| 51008 | Brunsville | 210 | $45k | 11.1 mi (near) |
| 51041 | Orange City | 7,324 | $84k | 13.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.