ZIP Codes of Fillmore County, MN

Population & People
Population & People
Total Population
23,353
Household Income
Household Income
Median Income
$78,750
Housing
Housing
Total Housing Units
10,519
Business & Economy
Business & Economy
Total Businesses
629
Employment
Employment
Employment Rate
65.19%
Education
Education
Bachelor's Degree+
25.09%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 12 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:12 ZIP Codes (12 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:507 / 924
Timezone:Central (GMT -06:00)
Local Time:11:53:54 PM
Population:23,353 [See All]
FIPS:27045
CBSA:Rochester, MN
Land Area:976 sq mi
Water Area:1 sq mi
Coordinates:43.6915, -92.0743
Quick Link:
https://www.zip-codes.com/county/mn-fillmore.asp
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Minnesota's #42 most populous county
23,353 residents across 12 ZIPs — #42 of 93 Minnesota counties.

Standout ZIPs in this County


Most Populous
Spring Valley · 4,433 people
19.0% of county total
Highest Income
Ostrander · $98,214 median
1.2× county average
Largest Land Area
Spring Valley · 150.4 sq mi
Spans the most ground
Fastest Growth
Lanesboro · 10.3% (10-yr)
1,744 → 1,923 residents
Most Educated
Lanesboro · 34.4% bachelor's+
468 of 1,362 adults 25+

Things worth knowing about Fillmore County


23,353 residents live across 12 ZIPs covering 976 sq mi, served by 12 distinct USPS-recognized cities.

Population moved from 23,578 to 23,353 from 2014 to 2024 — a -1.0% change. 5 ZIPs gained residents, 7 lost.

The county's wealthiest ZIP 55961 (Ostrander, $98,214 median) and poorest ZIP 55922 (Canton, $63,125) are 29.4 miles apart — a 1.6× income gap across local geography.

Median home values vary 2.4× across this county — from $120,300 in 55922 (Canton) to $293,000 in 55923 (Chatfield).

Density varies across the county — from 12 people/sq mi in 55962 (Peterson) to 34 in 55971 (Rushford).

Educational attainment ranges from 13.9% bachelor's+ in 55922 (Canton) to 34.4% in 55949 (Lanesboro) — the breadth of educational profiles across the area.

Within Minnesota, this is the #42 most populous of 93 counties and ranks #40 for median household income .

Weighted by population, the typical household earns about $80,710 across the county — reflecting what a typical resident sees, not a simple ZIP average.

25.1% of adults age 25+ hold a bachelor's degree or higher (4,052 of 16,147 reporting).

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

Stories about Fillmore 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
976
square miles
Avg density
23.9
people per sq mi
Population
23,353
across 12 ZIPs
Spring Valley
150.4 sq mi
4,433 residents
Chatfield
129.6 sq mi
4,375 residents
Lanesboro
112.7 sq mi
1,923 residents

All ZIP Codes in Fillmore County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
55975Spring ValleyStandard4,433$77,411150.42.7%
55923ChatfieldStandard4,375$96,328129.6-4.6%
55971RushfordStandard3,018$88,75087.8-11.8%
55965PrestonStandard2,300$65,577111.2-0.6%
55939HarmonyStandard1,973$70,85592.8-0.3%
55949LanesboroStandard1,923$84,327112.710.3%
55954MabelStandard1,332$66,25074.4-6.3%
55935FountainStandard1,006$85,00047.85.2%
55990WykoffStandard899$72,50041.39.1%
55922CantonStandard818$63,12534.8-4.6%
55962PetersonStandard756$76,66763.0-0.1%
55961OstranderStandard520$98,21430.729.4%

Adjacent & Nearby Counties