Residential delivery area · Minnesota

ZIP Code 56138: Hills, MN

ZIP code 56138 uses the postal name Hills, Minnesota and lies entirely in Rock County (Census 2020 ZIP-county file). About 930 people live there (Census Bureau, ACS 2020-2024). Median household income is $78,631 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Hills; 98% is outside any Census place.

ACS2020-24
Census2020
FHFA2022
ZBP2023
IRS2022

5national area: Minnesota, Iowa, Montana, North Dakota, South Dakota and Wisconsin

561sectional center: Mankato, MN (SCF 560)

38delivery area within it

Town: Hills · its only residential ZIP
County: Rock County
Census places: Hills
Metro area: Sioux Falls, SD-MN
House district: MN-1 119th Congress
State: Minnesota
Time zone: Central
Land area: 32.6 sq mi · 28 people per sq mi

Where is ZIP code 56138?

56138 centers on 43.537°, -96.380° and covers 32.6 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 56116, 57068, 56173, 51241, 51246.

Shaded by median household income, in national fifths (ACS 2020-2024); 56138 outlined. Census 2020 ZCTA boundaries. <$54.1k$98.1k+no figure

The map draws ZIP code areas only. For the streets inside 56138, 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 56138 compare with the rest of Rock County?

Rank of 56138 among the residential ZIP codes of its town, county and state (1 = the most; income and home value among ZIP codes of 1,000+ people living in households)
Measure	56138	In Rock County	In MN
People (ACS 2020-2024)	927	6th of 13	580th of 881
Median household income	$79k	not ranked	not ranked
Median home value	$207k	not ranked	not ranked

56138's income and home value are not ranked: it has fewer than 1,000 residents (927). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.

It is denser than 32% of 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 56138?

The 2020 Census counted 919 people in 56138; the ACS, which samples households over 2020-2024, estimates 927. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.

People, ACS 2020-2024: 927±139 (90% margin)
2020 Census count: 919
Households: 363
Median age: 41.3

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 56138?

Of the 927 people the ACS estimates in 56138, 27.7% are under 18 and 16.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (88.0%).

Under 1827.7%
18 to 6456.1%
65 and older16.2%

Age of the people of 56138 (ACS 2020-2024, B01001)

White, not Hispanic88.0%
Hispanic or Latino7.2%
Other or two or more4.7%
Black, not Hispanic0.0%
Asian, not Hispanic0.0%

Race and Hispanic origin in 56138 (ACS 2020-2024, B03002); each person counted once

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 56138 earn?

Median household income is $78,631 (ACS 2020-2024).

Median household income: $78,631±$9,909
Income per person: $39,447
Below the poverty line: 8.3%
Unemployed (of the labor force): 5.9%
Adults 25+ with a bachelor's degree: 25.3%
Adjusted gross income per tax return, 2022: $69,083410 returns; wages 71% 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 56138?

Median home value (owners' estimate): $207,300
Median gross rent: $962
Homes owned by their occupants: 78.8%
Housing units: 406

Index = 100 in 2003, the first year FHFA reports for 56138; 2022: 195.7. Annual, not seasonally adjusted; FHFA calls its ZIP-level indexes developmental. FHFA's series for 56138 stops in 2022: it publishes no ZIP index for a year with too few repeat sales.

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 56138?

21 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in transportation and warehousing (ZIP Code Business Patterns).

Transportation and warehousing5
Wholesale trade3

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 56138?

ZIP codes that share a boundary with 56138, then the nearest by center
ZIP	Town	People	Household income	Distance
56116	Beaver Creek	559	$95k	6.0 mi
57068	Valley Springs, SD	1,603	$113k	6.5 mi
56173	Steen	307	$59k	7.0 mi
51241	Larchwood, IA	2,103	$87k	7.2 mi
51246	Rock Rapids, IA	4,041	$72k	13.1 mi
51242	Lester, IA	379	$96k	7.5 mi (near)
57005	Brandon, SD	12,290	$113k	11.1 mi (near)
56156	Luverne	6,371	$71k	11.5 mi (near)
51230	Alvord, IA	478	$76k	12.8 mi (near)

Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.