ZIP Codes of Montgomery County, IL

Population & People
Population & People
Total Population
28,677
Household Income
Household Income
Median Income
$69,388
Housing
Housing
Total Housing Units
12,768
Business & Economy
Business & Economy
Total Businesses
682
Employment
Employment
Employment Rate
50.43%
Education
Education
Bachelor's Degree+
18.67%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 17 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:17 ZIP Codes (14 Standard, 3 PO Box, 0 Unique) [See All]
Area Codes:217 / 447
Timezone:Central (GMT -06:00)
Local Time:11:53:20 PM
Population:28,677 [See All]
FIPS:17135
Land Area:750 sq mi
Water Area:6 sq mi
Coordinates:39.2041, -89.4796
Quick Link:
https://www.zip-codes.com/county/il-montgomery.asp
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Illinois's #48 most populous county
28,677 residents across 17 ZIPs — #48 of 102 Illinois counties.

Standout ZIPs in this County


Most Populous
Litchfield · 8,528 people
29.7% of county total
Highest Income
Walshville · $102,188 median
1.5× county average
Largest Land Area
Nokomis · 113.0 sq mi
Spans the most ground
Fastest Growth
Raymond · 38.0% (10-yr)
1,048 → 1,446 residents
Most Educated
Litchfield · 24.3% bachelor's+
1,527 of 6,275 adults 25+

Things worth knowing about Montgomery County


28,677 residents live across 17 ZIPs covering 750 sq mi, served by 17 distinct USPS-recognized cities.

Population moved from 30,272 to 28,677 from 2014 to 2024 — a -5.3% change. 12 ZIPs gained residents, 5 lost.

The county's wealthiest ZIP 62091 (Walshville, $102,188 median) and poorest ZIP 62089 (Taylor Springs, $45,543) are 8.3 miles apart — a 2.2× income gap across local geography.

Median home values vary 3.8× across this county — from $54,700 in 62077 (Panama) to $208,300 in 62572 (Waggoner).

Density varies 120× across the county — from 9 people/sq mi in 62572 (Waggoner) to 1,141 in 62077 (Panama).

Educational attainment ranges from 3.8% bachelor's+ in 62077 (Panama) to 32.9% in 62533 (Farmersville) — the breadth of educational profiles across the area.

Within Illinois, this is the #48 most populous of 102 counties and ranks #60 for median household income .

Weighted by population, the typical household earns about $64,516 across the county — reflecting what a typical resident sees, not a simple ZIP average.

18.7% of adults age 25+ hold a bachelor's degree or higher (3,890 of 20,833 reporting).

14 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Montgomery 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
750
square miles
Avg density
38.2
people per sq mi
Population
28,677
across 17 ZIPs
Nokomis
113.0 sq mi
3,330 residents
Litchfield
108.1 sq mi
8,528 residents
Hillsboro
83.0 sq mi
7,871 residents

Population decline

Montgomery County lost 5.3% of residents between 2014 and 2024. ZIPs that shed the largest share:

Hillsboro
-28.4%
10,994 → 7,871 residents

All ZIP Codes in Montgomery County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
62056LitchfieldStandard8,528$62,643108.1-3.8%
62049HillsboroStandard7,871$55,44683.0-28.4%
62075NokomisStandard3,330$65,954113.02.4%
62560RaymondStandard1,446$80,78165.138.0%
62017CoffeenStandard1,127$97,62535.054.4%
62094WittStandard1,107$60,64432.726.9%
62533FarmersvilleStandard908$77,25052.528.1%
62051IrvingStandard791$64,36038.412.2%
62032FillmoreStandard765$61,00046.424.0%
62089Taylor SpringsPO Box487$45,5430.827.8%
62015ButlerStandard423$51,75836.434.7%
62572WaggonerStandard420$92,93844.4-14.5%
62077PanamaPO Box420$72,9170.478.7%
62538HarvelStandard342$85,56332.034.1%
62091WalshvilleStandard339$102,18831.19.7%
62019DonnellsonStandard314$56,74130.4-23.6%
62076OhlmanPO Box59$46,2500.3-33.0%

Adjacent & Nearby Counties