ZIP Codes of Cass County, MN

Population & People
Population & People
Total Population
25,675
Household Income
Household Income
Median Income
$61,342
Housing
Housing
Total Housing Units
21,248
Business & Economy
Business & Economy
Total Businesses
767
Employment
Employment
Employment Rate
49.93%
Education
Education
Bachelor's Degree+
24.49%
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 (12 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:218
Timezone:Central (GMT -06:00)
Local Time:2:12:36 PM
Population:25,675 [See All]
FIPS:27021
CBSA:Brainerd, MN
Land Area:2,007 sq mi
Water Area:395 sq mi
Coordinates:46.9740, -94.2740
Quick Link:
https://www.zip-codes.com/county/mn-cass.asp
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Minnesota's #40 most populous county
25,675 residents across 12 ZIPs — #40 of 93 Minnesota counties.

Standout ZIPs in this County


Most Populous
Cass Lake · 4,802 people
18.7% of county total
Highest Income
Pillager · $85,950 median
1.4× county average
Largest Land Area
Remer · 442.3 sq mi
Spans the most ground
Fastest Growth
Pine River · 26.6% (10-yr)
3,534 → 4,475 residents
Most Educated
Longville · 30.6% bachelor's+
365 of 1,192 adults 25+

Things worth knowing about Cass County


25,675 residents live across 12 ZIPs covering 2,007 sq mi, served by 12 distinct USPS-recognized cities.

Population moved from 24,032 to 25,675 from 2014 to 2024 — a +6.8% change. 9 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 56473 (Pillager, $85,950 median) and poorest ZIP 56641 (Federal Dam, $39,688) are 64.1 miles apart — a 2.2× income gap across local geography.

Median home values vary 2.9× across this county — from $150,000 in 56626 (Bena) to $428,900 in 56662 (Outing).

Density varies 11× across the county — from 3 people/sq mi in 55785 (Swatara) to 32 in 56473 (Pillager).

Educational attainment ranges from 6.0% bachelor's+ in 55785 (Swatara) to 30.6% in 56655 (Longville) — the breadth of educational profiles across the area.

Within Minnesota, this is the #40 most populous of 93 counties and ranks #91 for median household income with the #21 fastest decade growth .

Weighted by population, the typical household earns about $66,195 across the county — reflecting what a typical resident sees, not a simple ZIP average.

24.5% of adults age 25+ hold a bachelor's degree or higher (4,655 of 19,011 reporting).

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

Stories about Cass 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
2,007
square miles
Avg density
12.8
people per sq mi
Population
25,675
across 12 ZIPs
Remer
442.3 sq mi
2,052 residents
Cass Lake
305.0 sq mi
4,802 residents
Pine River
258.5 sq mi
4,475 residents

All ZIP Codes in Cass County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
56633Cass LakeStandard4,802$67,981305.011.2%
56474Pine RiverStandard4,475$59,922258.526.6%
56473PillagerStandard3,518$85,950109.53.7%
56484WalkerStandard3,252$67,019183.0-4.6%
56435BackusStandard2,801$62,381184.16.3%
56672RemerStandard2,052$61,842442.31.6%
56452HackensackStandard1,936$62,941120.24.5%
56655LongvilleStandard1,351$57,404114.3-12.2%
56662OutingStandard624$69,64369.722.4%
56641Federal DamStandard339$39,68845.62.4%
55785SwataraStandard271$56,47794.353.1%
56626BenaStandard254$44,85380.2-19.4%

Adjacent & Nearby Counties