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ZIP code 45231: Cincinnati, OH

45231 is a ZIP code in Cincinnati, Ohio, mainly in Hamilton County, part of the Cincinnati, OH-KY-IN metro area. About 40,463 people live here.

Population
40,463
Median household income
$71,353
Typical home value
$213,400+0.7% in 12 months
Median rent
$1,232gross, per month
Median age
41.1
Homeowners
72.6%of occupied homes
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Shaded: ZIP code 45231's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 45231 details

CityCincinnati
StateOhio
CountyHamilton County
Metro areaCincinnati, OH-KY-IN
Time zoneEastern Time (UTC−5), observes daylight saving time
TypeStandard (delivery area)
Land area14.8 sq mi, plus 0.2 sq mi of water
Population density2,738 people per sq mi
Bachelor's degree or higher29.2% of adults 25+
Average commute24.6 minutes
Center coordinates39.24750, -84.53484

Median rent in 45231 by bedrooms

SizeMedian gross rent
1 bedroom$702/mo
2 bedrooms$1,238/mo
3 bedrooms$1,449/mo
4 bedrooms$1,651/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 45231

ZIP codeCityDistancePopulation
45218Cincinnati, OH1.5 mi3,836
45299Cincinnati, OH1.7 mi—
45240Cincinnati, OH2.7 mi29,600
45224Cincinnati, OH3.1 mi21,900
45251Cincinnati, OH3.9 mi20,254
45239Cincinnati, OH3.9 mi29,607
45215Cincinnati, OH4.0 mi30,586
45216Cincinnati, OH4.3 mi9,569

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 45231?

A typical home in ZIP code 45231 is worth about $213,400 (Zillow Home Value Index). The median household here earns $71,353 a year. See what buying here would cost per month, with Ohio average taxes and insurance filled in.

Monthly payment for a $213,400 homeWhat can a $71,353 income afford?Rental property numbers

About ZIP code 45231

What city is ZIP code 45231?

ZIP code 45231 is in Cincinnati, OH, in Hamilton County.

What county is ZIP code 45231 in?

45231 is mainly in Hamilton County, Ohio.

What is the population of ZIP code 45231?

About 40,463 people live in ZIP code 45231, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 45231 in?

45231 is in Eastern Time (UTC−5). It observes daylight saving time.

What other ZIP codes does Cincinnati have?

Cincinnati, OH also uses 45201, 45202, 45203, 45204, 45205, 45206, 45207, 45208, 45209, 45211, 45212, 45213, 45214, 45215, 45216, 45217, 45218, 45219, 45220, 45221, 45222, 45223, 45224, 45225, 45226, 45227, 45229, 45230, 45232, 45233, 45234, 45235, 45236, 45237, 45238, 45239, 45240, 45241, 45242, 45243, 45244, 45245, 45246, 45247, 45248, 45249, 45250, 45251, 45252, 45253, 45254, 45255, 45258, 45262, 45263, 45264, 45267, 45268, 45269, 45270, 45271, 45273, 45274, 45275, 45277, 45280, 45296, 45298, 45299 and 45999.