What city is ZIP code 45831?

ZIP code 45831 is in Continental, OH (Putnam County).

What county is ZIP code 45831 in?

ZIP code 45831 is mostly in Putnam County, Ohio.

How many people live in ZIP code 45831?

About 3,233 people live in the 45831 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 45831

Continental, OH, Putnam County

Population

3,233

Land area

74.4sq mi

People per sq mi

City

Continental

ZIP 45831 and nearby ZIP codes

Full map

ZIP 45831 at a glance

ZIP 45831 (Continental) is 85% less dense than Ohio as a whole.
The median household income is $71,473, close to the Ohio median.
A typical owner-occupied home is valued at $168,000 (22% below Ohio) and median rent is $542 a month.

Local data for ZIP 45831

Counts from official public data

Housing and community stats

ZIP 45831, American Community Survey 2020-2024

Full profile

Median household income

$71,473

Poverty rate

9.1%

Median home value

$168,000

Prices +6.8% in a year

Median rent

$542/mo

Homeownership

94.7%

Bachelor's or higher

11.6%

Median age

44.6

Average commute

30.8 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

ZIP Business Patterns 2023

Employees

366

$19M annual payroll

PPP loans

$6.8M

138 loans

Campaign donations

$22.3K

4% D, 0% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 45831, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: hail

Storm events since 1996

336

Countywide, mostly thunderstorm wind

Flood insurance policies

110

0.8% of homes, county

July high / Jan low

85° / 18°F

37.7 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 45831, CDC PLACES estimates

All 40 measures

Obesity

44.6%

U.S. 33.3% +11.3 pts

Diabetes

12.3%

U.S. 12.1% about the same

Smoking

15.6%

U.S. 12.8% +2.8 pts

Uninsured (18-64)

7.3%

U.S. 11.1% -3.8 pts

Frequently asked questions

What city is ZIP code 45831?: ZIP code 45831 is in Continental, OH (Putnam County).
What county is ZIP code 45831 in?: ZIP code 45831 is mostly in Putnam County, Ohio.
How many people live in ZIP code 45831?: About 3,233 people live in the 45831 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.