ZIP Codes of Nobles County, MN

Population & People
Population & People
Total Population
22,081
Household Income
Household Income
Median Income
$71,148
Housing
Housing
Total Housing Units
8,435
Business & Economy
Business & Economy
Total Businesses
563
Employment
Employment
Employment Rate
61.45%
Education
Education
Bachelor's Degree+
17.84%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 12 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:12 ZIP Codes (11 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:507 / 924
Timezone:Central (GMT -06:00)
Local Time:2:12:38 PM
Population:22,081 [See All]
FIPS:27105
CBSA:Worthington, MN
Land Area:726 sq mi
Water Area:8 sq mi
Coordinates:43.6640, -95.8012
Quick Link:
https://www.zip-codes.com/county/mn-nobles.asp
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Minnesota's most foreign-born county
21.3% of residents are foreign-born.
Wide geographic spread
ZIPs range from 174.6 sq mi down to 0.99 — a 176× sprawl ratio.

Standout ZIPs in this County


Most Populous
Worthington · 15,214 people
68.9% of county total
Highest Income
Reading · $106,250 median
1.5× county average
Largest Land Area
Worthington · 174.6 sq mi
Spans the most ground
Fastest Growth
Brewster · 12.1% (10-yr)
1,060 → 1,188 residents
Most Educated
Adrian · 24.0% bachelor's+
251 of 1,048 adults 25+

Things worth knowing about Nobles County


22,081 residents live across 12 ZIPs covering 726 sq mi, served by 12 distinct USPS-recognized cities.

Population moved from 21,681 to 22,081 from 2014 to 2024 — a +1.8% change. 6 ZIPs gained residents, 6 lost.

The county's wealthiest ZIP 56165 (Reading, $106,250 median) and poorest ZIP 56155 (Lismore, $59,363) are 12.3 miles apart — a 1.8× income gap across local geography.

Median home values vary 2.0× across this county — from $108,800 in 56155 (Lismore) to $219,000 in 56187 (Worthington).

Density varies 12× across the county — from 8 people/sq mi in 56165 (Reading) to 101 in 56153 (Leota).

Educational attainment ranges from 9.4% bachelor's+ in 56165 (Reading) to 24.0% in 56110 (Adrian) — the breadth of educational profiles across the area.

Within Minnesota, this is the #45 most populous of 93 counties and ranks #63 for median household income .

Weighted by population, the typical household earns about $67,370 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.8% of adults age 25+ hold a bachelor's degree or higher (2,447 of 13,714 reporting).

11 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Nobles County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
726
square miles
Avg density
30.4
people per sq mi
Population
22,081
across 12 ZIPs
Worthington
174.6 sq mi
15,214 residents
Adrian
112.1 sq mi
1,633 residents
Rushmore
93.5 sq mi
858 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Worthington

All ZIP Codes in Nobles County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
56187WorthingtonStandard15,214$64,326174.65.9%
56110AdrianStandard1,633$77,875112.1-18.3%
56119BrewsterStandard1,188$83,58391.812.1%
56168RushmoreStandard858$71,78693.53.4%
56129EllsworthStandard761$62,61448.60.3%
56167Round LakeStandard555$73,20354.3-20.4%
56185WilmontStandard500$62,08345.9-10.9%
56155LismoreStandard411$59,36339.0-7.8%
56117BigelowStandard400$63,43824.110.2%
56165ReadingStandard333$106,25039.7-12.8%
56153LeotaPO Box173$78,7501.7-3.9%
56146KanaranziStandard55$50,5001.031.0%

Adjacent & Nearby Counties