Residential delivery area · Iowa
ZIP Code 51248: Sanborn, IA
ZIP code 51248 uses the postal name Sanborn, Iowa and lies mostly in O'Brien County (90% of its land) with the rest in Osceola County (Census 2020 ZIP-county file). About 1,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,375 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Sanborn; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Sanborn · its only residential ZIP
- County
- O'Brien County (90%); Osceola County (10%)
- Census places
- Sanborn
- House district
- IA-4 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 79.1 sq mi · 19 people per sq mi
Where is ZIP code 51248?
51248 centers on 43.204°, -95.659° and covers 79.1 square miles of land. It borders 6 ZIP codes: 51350, 51231, 51245, 51232, 51346, 51201.
The map draws ZIP code areas only. For the streets inside 51248, 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 51248 compare with the rest of O'Brien County?
| Measure | 51248 | In O'Brien County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,534 | 3rd of 14 | 342nd of 970 |
| Median household income | $64k | 4th of 5 | 323rd of 396 |
| Median home value | $173k | 3rd of 6 | 249th of 423 |
Its median household income is higher than in 37% of U.S. residential ZIP codes, and it is denser than 25% 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 51248?
The 2020 Census counted 1,828 people in 51248; the ACS, which samples households over 2020-2024, estimates 1,534. Between the 2010 and 2020 censuses its population fell 1.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,534±204 (90% margin)
- 2020 Census count
- 1,828−1.6% since 2010 (1,857)
- Households
- 686
- Median age
- 47.4
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 51248?
Of the 1,534 people the ACS estimates in 51248, 19.7% are under 18 and 36.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.9%).
- Under 1819.7%
- 18 to 6443.9%
- 65 and older36.4%
- White, not Hispanic93.9%
- Black, not Hispanic2.9%
- Hispanic or Latino1.9%
- Other or two or more0.9%
- Asian, 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 51248 earn?
Median household income is $64,375 (ACS 2020-2024), the 4th highest of the 5 ranked ZIP codes in O'Brien County. It is not measurably different from 2015-2019 ($72,699 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $64,375±$6,660
- Income per person
- $36,815
- Below the poverty line
- 11.6%
- Unemployed (of the labor force)
- 1.7%
- Adults 25+ with a bachelor's degree
- 20.8%
- Adjusted gross income per tax return, 2022
- $81,846830 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 51248?
- Median home value (owners' estimate)
- $172,800
- Median gross rent
- $954
- Homes owned by their occupants
- 76.2%
- Housing units
- 702
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 51248?
54 business establishments had a location in this ZIP code in 2023, 4 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade10
- Other services (except public administration)8
- Construction7
- Wholesale trade5
- Transportation and warehousing5
- Health care and social assistance5
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 51248?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 51350 | Melvin | 383 | $77k | 7.8 mi |
| 51231 | Archer | 562 | $108k | 8.0 mi |
| 51245 | Primghar | 1,377 | $70k | 9.2 mi |
| 51232 | Ashton | 658 | $83k | 9.8 mi |
| 51346 | Hartley | 2,247 | $72k | 10.4 mi |
| 51201 | Sheldon | 6,430 | $69k | 10.5 mi |
| 51244 | Matlock | 144 | $83k | 14.1 mi (near) |
| 51249 | Sibley | 3,564 | $62k | 14.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.