Residential delivery area · Iowa
ZIP Code 51028: Kingsley, IA
ZIP code 51028 uses the postal name Kingsley, Iowa and lies mostly in Plymouth County (80% of its land) with the rest in Woodbury County (Census 2020 ZIP-county file). About 2,200 people live there (Census Bureau, ACS 2020-2024). Median household income is $78,000 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Kingsley; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Kingsley · its only residential ZIP
- County
- Plymouth County (80%); Woodbury County (20%)
- Census places
- Kingsley
- Micro area
- Le Mars, IA
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 124.4 sq mi · 18 people per sq mi
Where is ZIP code 51028?
51028 centers on 42.597°, -95.988° and covers 124.4 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 51048, 51039, 51030, 51016, 51024, 51050, 51031.
The map draws ZIP code areas only. For the streets inside 51028, 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 51028 compare with the rest of Plymouth County?
| Measure | 51028 | In Plymouth County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 2,191 | 6th of 14 | 260th of 970 |
| Median household income | $78k | 6th of 8 | 189th of 396 |
| Median home value | $220k | 5th of 9 | 139th of 423 |
Its median household income is higher than in 59% of U.S. residential ZIP codes, and it is denser than 24% 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 51028?
The 2020 Census counted 2,058 people in 51028; the ACS, which samples households over 2020-2024, estimates 2,191. Between the 2010 and 2020 censuses its population fell 0.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,191±229 (90% margin)
- 2020 Census count
- 2,058−0.3% since 2010 (2,065)
- Households
- 904
- Median age
- 41.8
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 51028?
Of the 2,191 people the ACS estimates in 51028, 25.5% are under 18 and 20.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.8%).
- Under 1825.5%
- 18 to 6454.1%
- 65 and older20.4%
- White, not Hispanic95.8%
- Hispanic or Latino2.2%
- Asian, not Hispanic0.9%
- Other or two or more0.6%
- Black, not Hispanic0.5%
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 51028 earn?
Median household income is $78,000 (ACS 2020-2024), the 6th highest of the 8 ranked ZIP codes in Plymouth County. It is not measurably different from 2015-2019 ($74,807 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $78,000±$12,795
- Income per person
- $41,829
- Below the poverty line
- 6.8%
- Unemployed (of the labor force)
- 1.0%
- Adults 25+ with a bachelor's degree
- 29.9%
- Adjusted gross income per tax return, 2022
- $81,8151,000 returns; wages 57% 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 51028?
- Median home value (owners' estimate)
- $219,600
- Median gross rent
- $785
- Homes owned by their occupants
- 83.4%
- Housing units
- 985
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 51028?
49 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)9
- Construction8
- Wholesale trade6
- Retail trade6
- Transportation and warehousing6
- Finance and insurance5
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 51028?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51048 | Pierson | 435 | $83k | 8.1 mi |
| 51039 | Moville | 2,845 | $110k | 10.7 mi |
| 51030 | Lawton | 1,468 | $86k | 12.3 mi |
| 51016 | Correctionville | 1,080 | $52k | 12.7 mi |
| 51024 | Hinton | 2,081 | $114k | 14.1 mi |
| 51050 | Remsen | 2,962 | $93k | 14.2 mi |
| 51031 | Le Mars | 12,808 | $77k | 17.5 mi |
| 51061 | Washta | 389 | $49k | 13.4 mi (near) |
| 51004 | Anthon | 858 | $44k | 15.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.