45042 ZIP Code — Middletown, OH

Butler County, Ohio

ZIP code 45042 is located in Middletown, Ohio, within Butler County. It covers approximately 49.19 square miles and serves a population of 28,812 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 513.

About ZIP code 45042

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $172,700. Owner-occupancy sits near the national average at 70%.

Median household income is $63,938. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.

College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (24%) compared to national benchmarks.

28,812

population

49.19

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

45042 ZIP code map

Cities in ZIP code 45042

Below are the cities the US Postal Service accepts for ZIP code 45042. Using any city not on this list may result in mail delivery delays.

City	Status
Middletown	Acceptable
Middletown	Preferred

Nearby ZIP codes

45067 Trenton (5 mi) 45327 Germantown (6.2 mi) 45005 Franklin (7.1 mi) 45005 Franklin (7.1 mi) 45044 Middletown (8 mi) 45044 Middletown (8 mi) 45050 Monroe (8.2 mi) 45011 Hamilton (8.9 mi) 45011 Hamilton (8.9 mi) 45064 Somerville (9.7 mi) 45325 Farmersville (10.7 mi) 45342 Miamisburg (10.8 mi)

Demographics updated 05/2026

Population
Total population	28,812
Population density	586 / sq mi
State FIPS	39
County FIPS	017

Geography
Land area	49.19 sq mi
Water area	0.65 sq mi
Latitude	39.5470
Longitude	-84.4382
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	44.3%	36.2%	43.3%
$50k – $100k	32.6%	32.3%	31.4%
$100k – $200k	18.2%	25.1%	20.0%
Over $200k	5.0%	6.4%	5.2%

Demographics & statistics

28,812

Population

586

People per sq mi

40.0

Median age

$63,938

Median household income

$35,407

Per capita income

$172,700

Median home value

$929

Median monthly rent

70.1%

Home ownership

13.3%

Poverty rate

4.4%

Unemployment

8,829

Housing units

20.4%

Bachelor's or higher

Age distribution

Male Female

773

Under 5

831

803

5–9

863

969

10–14

1,041

958

15–19

1,028

969

20–24

1,041

1,572

25–34

1,688

1,617

35–44

1,736

1,768

45–54

1,899

961

55–59

1,032

883

60–64

949

1,609

65–74

1,729

754

75–84

809

256

85+

274

← Male

Female →

Age summary

Group	Count	%
Under 18	6,752	23.4%
18 and over	22,060	76.6%
65 and over	5,431	18.8%
Median age	40.0 years

Race & ethnicity

White 87.9%

Two or more races 4.8%

Black or African American 4.3%

Hispanic or Latino 1.8%

Other race 0.9%

Asian 0.3%

Group	Count	%
White	25,788	87.9%
Two or more races	1,403	4.8%
Black or African American	1,260	4.3%
Hispanic or Latino	515	1.8%
Other race	261	0.9%
Asian	98	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.3%	36.2%	43.3%
$50k – $100k	32.6%	32.3%	31.4%
$100k – $200k	18.2%	25.1%	20.0%
Over $200k	5.0%	6.4%	5.2%

Under $10k 5.1%

$10k–$15k 5.6%

$15k–$25k 7.0%

$25k–$35k 9.2%

$35k–$50k 14.0%

$50k–$75k 16.1%

$75k–$100k 15.2%

$100k–$150k 16.6%

$150k–$200k 4.9%

$200k+ 6.4%

Range	% of households
Under $10k	5.1%
$10k–$15k	5.6%
$15k–$25k	7.0%
$25k–$35k	9.2%
$35k–$50k	14.0%
$50k–$75k	16.1%
$75k–$100k	15.2%
$100k–$150k	16.6%
$150k–$200k	4.9%
$200k+	6.4%
Median income	$63,938

Housing

Home values

Under $50k 5.4%

$50k–$100k 17.0%

$100k–$150k 15.2%

$150k–$200k 22.3%

$200k–$300k 24.2%

$300k–$500k 13.8%

$500k–$1M 1.8%

$1M+ 0.3%

Housing overview

Metric	Value
Median home value	$172,700
Median rent / month	$929
Owner occupied	70.1%
Renter occupied	29.9%
Vacant	5.8%
Single-family detached	82.4%
Large apartment buildings	2.8%
Mobile homes	2.9%
Median rooms	5.9
Avg household size (owned)	2.51

Year built

Era	%
2020 or later	0.3%
2010–2019	2.6%
2000–2009	7.1%
1990–1999	8.4%
1980–1989	7.1%
1970–1979	14.2%
1960–1969	12.2%
1950–1959	19.6%
1940–1949	6.5%
1939 or earlier	21.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	6.8%
2 bedrooms	30.4%
3 bedrooms	43.8%
4 bedrooms	14.5%
5+ bedrooms	3.8%

Vehicles per household

Vehicles	% of households
No vehicle	7.3%
1 vehicle	29.3%
2 vehicles	34.9%
3 or more	28.5%

Heating fuel

Fuel type	%
Utility gas	49.6%
Electricity	35.1%
Propane / LP gas	4.3%
Fuel oil	8.9%
Wood	0.6%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	5,163	44.6%
Cohabiting couple	1,123	9.7%
Male householder, no spouse	2,303	19.9%
Female householder, no spouse	2,998	25.9%
Households with children under 18	3,696	31.9%
Households with seniors (65+)	4,055	35.0%
Average household size	2.47

Marital status

Status	Male	Female
Never married	33.2%	26.8%
Married	47.7%	45.2%
Separated	2.1%	2.5%
Widowed	4.0%	10.9%
Divorced	12.9%	14.6%

Education

Less than 9th grade 1.7%

Some HS, no diploma 8.1%

HS graduate 36.8%

Some college, no degree 23.2%

Associate's degree 9.8%

Bachelor's degree 12.7%

Graduate / professional 7.6%

Metric	%
HS diploma or higher	90.2%
Bachelor's or higher	20.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	531	7.9%
Kindergarten	231	3.4%
Elementary school	2,856	42.3%
High school	1,850	27.4%
College / grad school	1,281	19.0%

Employment

Industry of employment

Education & healthcare 22.8%

Manufacturing 15.7%

Retail trade 14.9%

Professional & management 9.7%

Arts, food & hospitality 7.6%

Construction 7.2%

Finance & real estate 6.0%

Transportation & utilities 5.3%

Other services 3.9%

Public administration 3.3%

Information 1.6%

Wholesale trade 1.3%

Agriculture & mining 1.0%

Occupation

Category	%
Management, business & arts	28.9%
Service	20.0%
Sales & office	21.9%
Natural resources & construction	8.3%
Production & transportation	20.8%

Employment type

Type	%
Private sector	82.9%
Government	12.2%
Self-employed	4.6%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	85.3%
Carpool	7.4%
Public transit	0.2%
Walk	0.9%
Work from home	5.7%
Other means	0.6%
Avg commute (minutes)	25.4

Poverty

All people 13.3%

Under 18 years 16.8%

18 and over 12.2%

Married-couple families 4.0%

Female-led households 40.8%

Income support

Source	% of households
Social Security	37.7%
Retirement income	30.0%
Supplemental Security	6.4%
Cash public assistance	2.6%
Food stamps / SNAP	12.7%

Health indicators

Condition	%
Obesity	37.2%
High blood pressure	35.9%
High cholesterol	34.0%
Diabetes	12.0%
Heart disease	7.8%
Stroke	3.7%
Asthma	10.3%
Arthritis	29.1%
Kidney disease	3.3%
Pulmonary disease	10.1%
Cancer	7.3%

Behavior / access	%
Smoking	24.1%
Binge drinking	17.6%
No physical activity	28.9%
Less than 7 hrs sleep	34.4%
Depression	24.3%
Fair or poor health	17.4%
Poor mental health	16.9%
Poor physical health	12.2%
No health insurance	13.0%
Visited doctor (checkup)	78.3%
Visited dentist	63.3%
Cholesterol screening	88.1%
Teeth loss	17.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,488	6.7%

Disability	%
Any disability	16.1%
Under 18	7.2%
18–64 years	13.2%
65 and over	36.2%

Health insurance coverage

Type	%
Private insurance	65.4%
Public insurance	42.5%
No insurance	6.4%
Uninsured under 19	4.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	27,208	94.4%
Spanish	337	1.2%
Other Indo-European	230	0.8%
Asian & Pacific Islander	7	0.0%
Other languages	100	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	28,269	98.1%
Born in same state	28,170	97.8%
Born in different state	22,699	78.8%
Foreign born	99	0.3%
Naturalized citizen	543	1.9%
Not a US citizen	219	40.3%

Ancestry

Ancestry	Count	%
French	4,204	14.6%
Italian	3,589	12.5%
Arab	2,342	8.1%
Irish	161	0.6%

Ancestry	Count	%
English	121	0.4%
German	60	0.2%
Polish	49	0.2%
Norwegian	8	0%

Technology access

Metric	% of households
Computer access	40.2%
Internet access	90.6%

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

Frequently asked questions about ZIP code 45042

What city is ZIP code 45042 in?

ZIP code 45042 is primarily assigned to Middletown, Ohio.

What county is ZIP code 45042 in?

ZIP code 45042 falls within Butler County, Ohio.

Does ZIP code 45042 have a large retiree population?

38% of households in ZIP code 45042 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 45042?

The median home value in ZIP code 45042 is $172,700.

What is the population of ZIP code 45042?

ZIP code 45042 has an estimated population of 28,812 residents, with a density of 586 people per square mile.

What is the median household income in ZIP code 45042?

The median household income in ZIP code 45042 is $63,938, below the national median of ~$75,000.

What timezone is ZIP code 45042 in?

ZIP code 45042 observes the EST timezone.