Residential delivery area · Iowa
ZIP Code 51046: Paullina, IA
ZIP code 51046 uses the postal name Paullina, Iowa and lies mostly in O'Brien County (95% of its land) with the rest in Cherokee County (Census 2020 ZIP-county file). About 1,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $84,125 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Paullina; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Paullina · its only residential ZIP
- County
- O'Brien County (95%); Cherokee County (5%)
- Census places
- Paullina
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 93.3 sq mi · 14 people per sq mi
Where is ZIP code 51046?
51046 centers on 42.962°, -95.678° and covers 93.3 square miles of land plus 0.1 of water. It borders 10 ZIP codes: 51009, 51022, 51029, 51245, 51037, 51058, 51231, 51014, 51035, 51012.
The map draws ZIP code areas only. For the streets inside 51046, 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 51046 compare with the rest of O'Brien County?
| Measure | 51046 | In O'Brien County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,326 | 6th of 14 | 387th of 970 |
| Median household income | $84k | 1st of 5 | 142nd of 396 |
| Median home value | $160k | 4th of 6 | 293rd of 423 |
Its median household income is higher than in 67% 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 51046?
The 2020 Census counted 1,497 people in 51046; the ACS, which samples households over 2020-2024, estimates 1,326. Between the 2010 and 2020 censuses its population fell 9.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,326±171 (90% margin)
- 2020 Census count
- 1,497−9.8% since 2010 (1,660)
- Households
- 637
- Median age
- 50.6
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 51046?
Of the 1,326 people the ACS estimates in 51046, 17.3% are under 18 and 21.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (97.7%).
- Under 1817.3%
- 18 to 6460.7%
- 65 and older21.9%
- White, not Hispanic97.7%
- Asian, not Hispanic1.5%
- Other or two or more0.4%
- Hispanic or Latino0.2%
- Black, not Hispanic0.2%
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 51046 earn?
Median household income is $84,125 (ACS 2020-2024), the highest of the 5 ranked ZIP codes in O'Brien County. It is not measurably different from 2015-2019 ($84,164 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $84,125±$21,001
- Income per person
- $45,310
- Below the poverty line
- 6.2%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 19.7%
- Adjusted gross income per tax return, 2022
- $79,051720 returns; wages 54% 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 51046?
- Median home value (owners' estimate)
- $160,300
- Median gross rent
- $895
- Homes owned by their occupants
- 76.0%
- Housing units
- 763
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 51046?
50 business establishments had a location in this ZIP code in 2023, 6 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction8
- Retail trade7
- Other services (except public administration)7
- Transportation and warehousing5
- Wholesale trade3
- 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 51046?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51009 | Calumet | 113 | $59k | 6.5 mi |
| 51022 | Granville | 960 | $97k | 8.6 mi |
| 51029 | Larrabee | 261 | $86k | 8.7 mi |
| 51245 | Primghar | 1,377 | $70k | 8.9 mi |
| 51037 | Meriden | 327 | $59k | 9.6 mi |
| 51058 | Sutherland | 1,096 | $63k | 10.3 mi |
| 51231 | Archer | 562 | $108k | 10.4 mi |
| 51014 | Cleghorn | 549 | $70k | 12.1 mi |
| 51035 | Marcus | 1,627 | $79k | 14.0 mi |
| 51012 | Cherokee | 6,311 | $70k | 16.1 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.