ZIP Codes of Randolph County, MO

Population & People
Population & People
Total Population
26,509
Household Income
Household Income
Median Income
$57,408
Housing
Housing
Total Housing Units
11,420
Business & Economy
Business & Economy
Total Businesses
555
Employment
Employment
Employment Rate
53.63%
Education
Education
Bachelor's Degree+
18.33%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 8 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:235 / 573 / 660
Timezone:Central (GMT -06:00)
Local Time:2:12:45 PM
Population:26,509 [See All]
FIPS:29175
CBSA:Moberly, MO
Land Area:584 sq mi
Water Area:5 sq mi
Coordinates:39.4207, -92.4724
Quick Link:
https://www.zip-codes.com/county/mo-randolph.asp
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Missouri's #41 most populous county
26,509 residents across 8 ZIPs — #41 of 116 Missouri counties.

Standout ZIPs in this County


Most Populous
Moberly · 16,612 people
62.7% of county total
Highest Income
Cairo · $83,578 median
1.5× county average
Largest Land Area
Moberly · 114.6 sq mi
Spans the most ground
Fastest Growth
Cairo · 18.4% (10-yr)
1,472 → 1,743 residents
Most Educated
Cairo · 24.3% bachelor's+
278 of 1,143 adults 25+

Things worth knowing about Randolph County


26,509 residents live across 8 ZIPs covering 584 sq mi, served by 8 distinct USPS-recognized cities.

Population moved from 27,461 to 26,509 from 2014 to 2024 — a -3.5% change. 4 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 65239 (Cairo, $83,578 median) and poorest ZIP 65244 (Clifton Hill, $48,125) are 13.5 miles apart — a 1.7× income gap across local geography.

Median home values vary 2.5× across this county — from $88,200 in 65260 (Jacksonville) to $217,100 in 65244 (Clifton Hill).

Density varies 34× across the county — from 4 people/sq mi in 65244 (Clifton Hill) to 145 in 65270 (Moberly).

Educational attainment ranges from 8.1% bachelor's+ in 65244 (Clifton Hill) to 24.3% in 65239 (Cairo) — the breadth of educational profiles across the area.

Within Missouri, this is the #41 most populous of 116 counties and ranks #77 for median household income .

Weighted by population, the typical household earns about $54,649 across the county — reflecting what a typical resident sees, not a simple ZIP average.

18.3% of adults age 25+ hold a bachelor's degree or higher (3,318 of 18,099 reporting).

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

Stories about Randolph 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
584
square miles
Avg density
45.4
people per sq mi
Population
26,509
across 8 ZIPs
Moberly
114.6 sq mi
16,612 residents
Huntsville
106.4 sq mi
2,990 residents
Clark
98.6 sq mi
2,950 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.

Moberly

All ZIP Codes in Randolph County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
65270MoberlyStandard16,612$48,351114.6-6.9%
65259HuntsvilleStandard2,990$60,865106.412.9%
65243ClarkStandard2,950$68,02198.6-3.9%
65239CairoStandard1,743$83,57857.318.4%
65257HigbeeStandard1,484$54,91184.33.7%
65260JacksonvilleStandard384$49,79248.8-39.1%
65244Clifton HillStandard311$48,12573.911.5%
65278RenickPO Box35$45,6250.0-63.5%

Adjacent & Nearby Counties