ZIP Codes of Benton County, MN

Population & People
Population & People
Total Population
33,824
Household Income
Household Income
Median Income
$96,294
Housing
Housing
Total Housing Units
13,774
Business & Economy
Business & Economy
Total Businesses
779
Employment
Employment
Employment Rate
70.96%
Education
Education
Bachelor's Degree+
25.97%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:5 ZIP Codes (4 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:320 / 763
Timezone:Central (GMT -06:00)
Local Time:2:12:35 PM
Population:33,824 [See All]
FIPS:27009
CBSA:St. Cloud, MN
Land Area:423 sq mi
Water Area:5 sq mi
Coordinates:45.7098, -94.0007
Quick Link:
https://www.zip-codes.com/county/mn-benton.asp
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Minnesota's #33 most populous county
33,824 residents across 5 ZIPs — #33 of 93 Minnesota counties.

Standout ZIPs in this County


Most Populous
Sauk Rapids · 17,607 people
52.1% of county total
Highest Income
Oak Park · $114,531 median
1.2× county average
Largest Land Area
Foley · 191.0 sq mi
Spans the most ground
Fastest Growth
Oak Park · 21.3% (10-yr)
1,014 → 1,230 residents
Most Educated
Sauk Rapids · 29.4% bachelor's+
3,397 of 11,574 adults 25+

Things worth knowing about Benton County


33,824 residents live across 5 ZIPs covering 423 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 31,287 to 33,824 from 2014 to 2024 — a +8.1% change. 4 ZIPs gained residents, 0 lost.

The county's wealthiest ZIP 56357 (Oak Park, $114,531 median) and poorest ZIP 56379 (Sauk Rapids, $76,138) are 14.1 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.1× across this county — from $272,400 in 56379 (Sauk Rapids) to $294,300 in 56357 (Oak Park).

Density varies across the county — from 32 people/sq mi in 56357 (Oak Park) to 196 in 56379 (Sauk Rapids).

Educational attainment ranges from 19.3% bachelor's+ in 56357 (Oak Park) to 29.4% in 56379 (Sauk Rapids) — the breadth of educational profiles across the area.

Within Minnesota, this is the #33 most populous of 93 counties and ranks #12 for median household income with the #14 fastest decade growth .

Weighted by population, the typical household earns about $86,815 across the county — reflecting what a typical resident sees, not a simple ZIP average.

26.0% of adults age 25+ hold a bachelor's degree or higher (5,835 of 22,470 reporting).

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

All ZIP Codes in Benton County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
56379Sauk RapidsStandard17,607$76,13889.77.1%
56329FoleyStandard7,778$92,738191.06.9%
56367RiceStandard7,209$101,771104.49.9%
56357Oak ParkStandard1,230$114,53138.321.3%
56333GilmanPO Box0.0

Adjacent & Nearby Counties