ZIP Codes of Morrow County, OH

Population & People
Population & People
Total Population
25,754
Household Income
Household Income
Median Income
$67,727
Housing
Housing
Total Housing Units
10,978
Business & Economy
Business & Economy
Total Businesses
389
Employment
Employment
Employment Rate
60.68%
Education
Education
Bachelor's Degree+
19.15%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 9 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:9 ZIP Codes (5 Standard, 4 PO Box, 0 Unique) [See All]
Area Codes:419 / 567
Timezone:Eastern (GMT -05:00)
Local Time:2:13:21 PM
Population:25,754 [See All]
FIPS:39117
CBSA:Columbus, OH
Land Area:278 sq mi
Water Area:1 sq mi
Coordinates:40.5184, -82.7901
Quick Link:
https://www.zip-codes.com/county/oh-morrow.asp
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Extreme geographic sprawl
The largest ZIP spans 666× the smallest by area — 97.2 sq mi down to 0.15.

Standout ZIPs in this County


Most Populous
Mount Gilead · 10,599 people
41.2% of county total
Highest Income
Marengo · $100,825 median
1.5× county average
Largest Land Area
Mount Gilead · 97.2 sq mi
Spans the most ground
Fastest Growth
Mount Gilead · 4.2% (10-yr)
10,173 → 10,599 residents
Most Educated
Mount Gilead · 23.6% bachelor's+
1,835 of 7,770 adults 25+

Things worth knowing about Morrow County


25,754 residents live across 9 ZIPs covering 278 sq mi, served by 9 distinct USPS-recognized cities.

Population moved from 26,249 to 25,538 from 2014 to 2024 — a -2.7% change. 3 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 43334 (Marengo, $100,825 median) and poorest ZIP 43321 (Fulton, $48,125) are 4.6 miles apart — a 2.1× income gap across local geography.

Median home values vary 2.1× across this county — from $124,300 in 43320 (Edison) to $262,900 in 43334 (Marengo).

Density varies 68× across the county — from 38 people/sq mi in 43320 (Edison) to 2,593 in 43321 (Fulton).

Educational attainment ranges from 9.6% bachelor's+ in 43320 (Edison) to 23.6% in 43338 (Mount Gilead) — the breadth of educational profiles across the area.

Within Ohio, this is the #77 most populous of 88 counties and ranks #59 for median household income .

Weighted by population, the typical household earns about $78,296 across the county — reflecting what a typical resident sees, not a simple ZIP average.

19.2% of adults age 25+ hold a bachelor's degree or higher (3,592 of 18,753 reporting).

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

All ZIP Codes in Morrow County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
43338Mount GileadStandard10,599$72,31197.24.2%
43315CardingtonStandard6,873$73,77084.7-3.0%
43334MarengoStandard6,326$100,82564.4-8.0%
43320EdisonStandard1,189$51,60331.1-29.5%
43321FultonStandard378$48,1250.137.0%
43317ChestervillePO Box173$56,8750.212.3%
43350SpartaPO Box146$70,5830.1
43325IberiaPO Box700.0
43349ShauckPO Box0.0

Adjacent & Nearby Counties