45039 ZIP Code — Maineville, OH

Warren County, Ohio

ZIP code 45039 is located in Maineville, Ohio, within Warren County. It covers approximately 15.56 square miles and serves a population of 29,112 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 513.

About ZIP code 45039

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $279,000. Owner-occupancy is high at 86%, well above the national average.

The gap between median ($109,858) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 3% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.

Educational attainment is high — 50% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 45039 reflects a community defined by a highly educated population and high homeownership.

29,112

population

15.56

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

45039 ZIP code map

Cities in ZIP code 45039

Below are the cities the US Postal Service accepts for ZIP code 45039. Using any city not on this list may result in mail delivery delays.

City	Status
Maineville	Acceptable
Maineville	Preferred

Nearby ZIP codes

45034 Kings Mills (2.2 mi) 45034 Kings Mills (2.2 mi) 45040 Mason (3.5 mi) 45040 Mason (3.5 mi) 45065 South Lebanon (3.7 mi) 45065 South Lebanon (3.7 mi) 45140 Loveland (5.1 mi) 45140 Loveland (5.1 mi) 45249 Cincinnati (6.1 mi) 45249 Cincinnati (6.1 mi) 45152 Morrow (7 mi) 45152 Morrow (7 mi)

Demographics updated 05/2026

Population
Total population	29,112
Population density	1,871 / sq mi
State FIPS	39
County FIPS	165

Geography
Land area	15.56 sq mi
Water area	0.37 sq mi
Latitude	39.3289
Longitude	-84.2427
Timezone	Eastern (ET)
Area code	513

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.0%	24.5%	43.3%
$50k – $100k	33.2%	30.8%	31.4%
$100k – $200k	33.7%	30.8%	20.0%
Over $200k	14.1%	14.0%	5.2%

Demographics & statistics

29,112

Population

1,871

People per sq mi

38.4

Median age

$109,858

Median household income

$53,954

Per capita income

$279,000

Median home value

$1,486

Median monthly rent

86.1%

Home ownership

2.9%

Poverty rate

1.4%

Unemployment

10,019

Housing units

50.3%

Bachelor's or higher

Age distribution

Male Female

930

Under 5

888

995

5–9

949

1,275

10–14

1,216

783

15–19

748

612

20–24

583

1,764

25–34

1,683

2,460

35–44

2,347

1,743

45–54

1,663

1,026

55–59

979

941

60–64

898

1,519

65–74

1,449

667

75–84

637

183

85+

174

← Male

Female →

Age summary

Group	Count	%
Under 18	7,348	25.2%
18 and over	21,764	74.8%
65 and over	4,629	15.9%
Median age	38.4 years

Race & ethnicity

White 88%

Two or more races 3%

Asian 3%

Hispanic or Latino 2.9%

Black or African American 1.9%

Other race 1.2%

Group	Count	%
White	26,407	88%
Two or more races	894	3%
Asian	893	3%
Hispanic or Latino	882	2.9%
Black or African American	562	1.9%
Other race	356	1.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.0%	24.5%	43.3%
$50k – $100k	33.2%	30.8%	31.4%
$100k – $200k	33.7%	30.8%	20.0%
Over $200k	14.1%	14.0%	5.2%

Under $10k 1.0%

$10k–$15k 1.2%

$15k–$25k 1.7%

$25k–$35k 2.2%

$35k–$50k 6.7%

$50k–$75k 14.5%

$75k–$100k 15.0%

$100k–$150k 26.9%

$150k–$200k 14.3%

$200k+ 16.4%

Range	% of households
Under $10k	1.0%
$10k–$15k	1.2%
$15k–$25k	1.7%
$25k–$35k	2.2%
$35k–$50k	6.7%
$50k–$75k	14.5%
$75k–$100k	15.0%
$100k–$150k	26.9%
$150k–$200k	14.3%
$200k+	16.4%
Median income	$109,858

Housing

Home values

Under $50k 1.2%

$50k–$100k 0.3%

$100k–$150k 3.6%

$150k–$200k 13.3%

$200k–$300k 41.8%

$300k–$500k 29.6%

$500k–$1M 9.6%

$1M+ 0.7%

Housing overview

Metric	Value
Median home value	$279,000
Median rent / month	$1,486
Owner occupied	86.1%
Renter occupied	13.9%
Vacant	3.4%
Single-family detached	77.5%
Large apartment buildings	1.4%
Mobile homes	0.0%
Median rooms	6.9
Avg household size (owned)	2.60

Year built

Era	%
2020 or later	1.2%
2010–2019	12.9%
2000–2009	31.4%
1990–1999	21.6%
1980–1989	17.7%
1970–1979	8.2%
1960–1969	1.9%
1950–1959	2.8%
1940–1949	0.5%
1939 or earlier	1.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.1%
1 bedroom	1.6%
2 bedrooms	24.4%
3 bedrooms	38.7%
4 bedrooms	31.2%
5+ bedrooms	4.1%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	28.7%
2 vehicles	50.6%
3 or more	19.4%

Heating fuel

Fuel type	%
Utility gas	58.7%
Electricity	38.8%
Propane / LP gas	1.2%
Fuel oil	0.8%
Wood	0.2%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	7,149	64.0%
Cohabiting couple	446	4.0%
Male householder, no spouse	1,422	12.7%
Female householder, no spouse	2,162	19.3%
Households with children under 18	3,921	35.1%
Households with seniors (65+)	3,332	29.8%
Average household size	2.60

Marital status

Status	Male	Female
Never married	26.5%	16.3%
Married	63.6%	64.6%
Separated	0.6%	1.2%
Widowed	1.1%	5.5%
Divorced	8.2%	12.4%

Education

Less than 9th grade 1.3%

Some HS, no diploma 1.0%

HS graduate 18.8%

Some college, no degree 18.6%

Associate's degree 10.1%

Bachelor's degree 31.8%

Graduate / professional 18.5%

Metric	%
HS diploma or higher	97.8%
Bachelor's or higher	50.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	502	6.8%
Kindergarten	457	6.2%
Elementary school	3,707	50.5%
High school	1,350	18.4%
College / grad school	1,324	18.0%

Employment

Industry of employment

Education & healthcare 22.5%

Manufacturing 16.0%

Professional & management 14.7%

Finance & real estate 10.6%

Retail trade 10.5%

Wholesale trade 5.8%

Construction 5.5%

Arts, food & hospitality 5.2%

Public administration 3.0%

Transportation & utilities 2.7%

Other services 2.3%

Information 1.4%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	55.6%
Service	9.9%
Sales & office	21.1%
Natural resources & construction	6.6%
Production & transportation	6.8%

Employment type

Type	%
Private sector	82.0%
Government	10.6%
Self-employed	7.3%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	76.8%
Carpool	4.1%
Public transit	1.5%
Walk	1.3%
Work from home	15.3%
Other means	0.9%
Avg commute (minutes)	27.5

Poverty

All people 2.9%

Under 18 years 2.5%

18 and over 3.0%

Married-couple families 0.5%

Female-led households 6.7%

Income support

Source	% of households
Social Security	27.8%
Retirement income	28.1%
Supplemental Security	1.8%
Cash public assistance	1.8%
Food stamps / SNAP	3.3%

Health indicators

Condition	%
Obesity	35.5%
High blood pressure	25.7%
High cholesterol	28.9%
Diabetes	7.4%
Heart disease	4.6%
Stroke	2.0%
Asthma	9.2%
Arthritis	21.4%
Kidney disease	2.0%
Pulmonary disease	5.2%
Cancer	5.9%

Behavior / access	%
Smoking	15.2%
Binge drinking	18.6%
No physical activity	17.0%
Less than 7 hrs sleep	32.8%
Depression	22.3%
Fair or poor health	8.9%
Poor mental health	14.4%
Poor physical health	7.2%
No health insurance	8.5%
Visited doctor (checkup)	75.6%
Visited dentist	74.1%
Cholesterol screening	90.5%
Teeth loss	8.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,270	5.8%

Disability	%
Any disability	9.8%
Under 18	5.7%
18–64 years	5.6%
65 and over	31.8%

Health insurance coverage

Type	%
Private insurance	88.2%
Public insurance	20.5%
No insurance	2.5%
Uninsured under 19	0.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	27,294	93.8%
Spanish	594	2.2%
Other Indo-European	229	0.8%
Asian & Pacific Islander	319	1.2%
Other languages	44	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	27,086	93.0%
Born in same state	26,727	91.8%
Born in different state	17,895	61.5%
Foreign born	359	1.2%
Naturalized citizen	2,026	7.0%
Not a US citizen	1,226	60.5%

Ancestry

Ancestry	Count	%
Italian	4,619	15.9%
French	3,824	13.1%
Arab	898	3.1%
English	455	1.6%
Polish	260	0.9%

Ancestry	Count	%
Irish	127	0.4%
Norwegian	99	0.3%
German	94	0.3%
Dutch	59	0.2%

Technology access

Metric	% of households
Computer access	38.4%
Internet access	96.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 45039

What city is ZIP code 45039 in?

ZIP code 45039 is primarily assigned to Maineville, Ohio.

What county is ZIP code 45039 in?

ZIP code 45039 falls within Warren County, Ohio.

Is ZIP code 45039 mostly owner-occupied?

86% of occupied units in ZIP code 45039 are owner-occupied, well above the national average.

How educated is the population of ZIP code 45039?

50% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 45039?

The median household income in ZIP code 45039 is $109,858, above the national median of ~$75,000.

What is the population of ZIP code 45039?

ZIP code 45039 has an estimated population of 29,112 residents, with a density of 1,872 people per square mile.

What timezone is ZIP code 45039 in?

ZIP code 45039 observes the EST timezone.