Greenfield ZIP Code List — Highland County, OH

There is one unique ZIP code in Greenfield, Ohio and it is 45123. Area code: 937.

ZIP codes

106.76

sq mi land

1.21

sq mi water

937

area code

Greenfield, OH ZIP code map

About Greenfield, OH

Greenfield, Ohio, is a charming city located in the southwestern part of the state, known for its welcoming community and small-town atmosphere. As a part of Highland County, this city encompasses a unique blend of rural charm and local history. Greenfield is a place where residents can enjoy a slower pace of life while still benefiting from a range of local amenities.

Location & geography

Greenfield is situated in Highland County, which is in southwestern Ohio. It is conveniently located near several other cities, including Hillsboro (approximately 18 miles to the northeast), Wilmington (about 25 miles to the west), and Chillicothe (roughly 29 miles to the north. The city covers a total land area of 106.76 square miles, of which 1.21 square miles consists of water, making it a predominantly rural area with scenic landscapes.

Community & economy

The character of Greenfield is shaped by its tight-knit community and a strong sense of local pride. Industries such as agriculture and manufacturing play a significant role in the local economy, providing employment opportunities for residents. Daily life in Greenfield is complemented by local events, family-owned businesses, and a focus on outdoor activities, making it an inviting place to live and visit.

Transportation

Greenfield is accessible via several major highways, including U.S. Route 35, which runs through the city, connecting it to larger urban areas. The nearest named airport is the Wilmington Air Park, located approximately 25 miles to the west. Public transportation options are limited, but the city is well-connected by its road network.

History

Founded in 1818, Greenfield has a rich history that reflects the development of the Midwest during the early 19th century. Originally a hub for agriculture, the city has expanded over the years to include various industries, contributing to its economic diversity. Notable events throughout its history have helped shape its community and foster a strong sense of identity among residents.

Did you know?

One surprising fact about Greenfield is that it has only one ZIP code, which is 45123. Additionally, the city has a rich agrarian tradition that continues to be a vital part of its character today.

ZIP codes for Greenfield, OH (1)

ZIP code	City	County	Map
45123	Greenfield	Highland	View map

Demographics & statistics

8,958

Population

37.1

Median age

$58,623

Median household income

$27,812

Per capita income

$133,200

Median home value

$728

Median monthly rent

64.5%

Home ownership

21.4%

Poverty rate

3.7%

Unemployment

2,691

Housing units

15.3%

Bachelor's or higher

Age distribution

Male Female

443

Under 5

449

192

5–9

194

349

10–14

354

240

15–19

243

286

20–24

290

623

25–34

630

446

35–44

451

664

45–54

672

339

55–59

344

214

60–64

217

472

65–74

477

138

75–84

140

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,309	25.8%
18 and over	6,649	74.2%
65 and over	1,318	14.7%
Median age	37.1 years

Race & ethnicity

White 91.7%

Two or more races 3.6%

Black or African American 3%

Hispanic or Latino 1.5%

Other race 0.2%

Group	Count	%
White	8,335	91.7%
Two or more races	325	3.6%
Black or African American	274	3%
Hispanic or Latino	134	1.5%
Other race	21	0.2%

Household income

Under $10k 10.4%

$10k–$15k 3.3%

$15k–$25k 8.6%

$25k–$35k 6.8%

$35k–$50k 15.6%

$50k–$75k 13.7%

$75k–$100k 13.1%

$100k–$150k 17.4%

$150k–$200k 8.3%

$200k+ 2.8%

Range	% of households
Under $10k	10.4%
$10k–$15k	3.3%
$15k–$25k	8.6%
$25k–$35k	6.8%
$35k–$50k	15.6%
$50k–$75k	13.7%
$75k–$100k	13.1%
$100k–$150k	17.4%
$150k–$200k	8.3%
$200k+	2.8%
Median income	$58,623

Housing

Home values

Under $50k 11.4%

$50k–$100k 20.5%

$100k–$150k 28.5%

$150k–$200k 13.9%

$200k–$300k 15.4%

$300k–$500k 6.1%

$500k–$1M 4.1%

Housing overview

Metric	Value
Median home value	$133,200
Median rent / month	$728
Owner occupied	64.5%
Renter occupied	35.5%
Vacant	14.9%
Single-family detached	78.6%
Large apartment buildings	0.6%
Mobile homes	4.6%
Median rooms	5.9
Avg household size (owned)	2.76

Year built

Era	%
2020 or later	0.0%
2010–2019	1.5%
2000–2009	12.8%
1990–1999	17.7%
1980–1989	5.9%
1970–1979	11.2%
1960–1969	5.2%
1950–1959	13.3%
1940–1949	9.0%
1939 or earlier	23.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.0%
1 bedroom	8.0%
2 bedrooms	27.5%
3 bedrooms	43.3%
4 bedrooms	17.9%
5+ bedrooms	2.2%

Vehicles per household

Vehicles	% of households
No vehicle	7.3%
1 vehicle	24.5%
2 vehicles	36.8%
3 or more	31.4%

Heating fuel

Fuel type	%
Utility gas	39.5%
Electricity	34.8%
Propane / LP gas	13.0%
Fuel oil	4.4%
Wood	3.6%
No fuel used	1.0%

Households & families

Household type	Count	%
Married-couple family	1,840	56.1%
Cohabiting couple	409	12.5%
Male householder, no spouse	410	12.5%
Female householder, no spouse	622	19.0%
Households with children under 18	1,145	34.9%
Households with seniors (65+)	1,041	31.7%
Average household size	2.69

Marital status

Status	Male	Female
Never married	26.2%	24.6%
Married	56.0%	55.5%
Separated	0.1%	1.3%
Widowed	4.9%	7.1%
Divorced	12.8%	11.5%

Education

Less than 9th grade 5.9%

Some HS, no diploma 10.2%

HS graduate 40.4%

Some college, no degree 18.5%

Associate's degree 9.7%

Bachelor's degree 9.3%

Graduate / professional 5.9%

Metric	%
HS diploma or higher	83.9%
Bachelor's or higher	15.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	117	6.2%
Kindergarten	72	3.8%
Elementary school	908	48.5%
High school	432	23.1%
College / grad school	344	18.4%

Employment

Industry of employment

Manufacturing 24.4%

Education & healthcare 20.2%

Retail trade 10.4%

Professional & management 9.1%

Construction 8.3%

Transportation & utilities 6.4%

Arts, food & hospitality 5.7%

Public administration 4.5%

Wholesale trade 3.3%

Other services 3.3%

Finance & real estate 2.6%

Information 1.2%

Agriculture & mining 0.8%

Occupation

Category	%
Management, business & arts	32.4%
Service	10.1%
Sales & office	17.8%
Natural resources & construction	12.9%
Production & transportation	26.8%

Employment type

Type	%
Private sector	77.9%
Government	14.6%
Self-employed	7.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.7%
Carpool	13.1%
Public transit	0.0%
Walk	1.9%
Other means	0.0%
Avg commute (minutes)	34.4

Poverty

All people 21.4%

Under 18 years 33.1%

18 and over 17.4%

Married-couple families 8.8%

Female-led households 51.7%

Income support

Source	% of households
Social Security	35.0%
Retirement income	20.7%
Supplemental Security	8.5%
Cash public assistance	1.9%
Food stamps / SNAP	21.0%

Health indicators

Condition	%
High blood pressure	37.5%
High cholesterol	32.6%
Heart disease	8.7%
Stroke	4.2%
Asthma	11.3%
Arthritis	32.1%
Kidney disease	3.5%
Pulmonary disease	12.2%
Cancer	6.9%

Behavior / access	%
Binge drinking	15.9%
No physical activity	32.8%
Less than 7 hrs sleep	37.7%
Fair or poor health	20.5%
Poor mental health	18.4%
Poor physical health	13.8%
No health insurance	14.5%
Visited doctor (checkup)	75.6%
Visited dentist	53.6%
Cholesterol screening	85.9%
Teeth loss	23.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	379	5.7%

Disability	%
Any disability	18.1%
Under 18	4.5%
18–64 years	18.7%
65 and over	40.8%

Health insurance coverage

Type	%
Private insurance	61.3%
Public insurance	42.7%
Uninsured under 19	4.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	8,066	90.0%
Spanish	54	0.7%
Other Indo-European	40	0.5%
Asian & Pacific Islander	14	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,927	99.7%
Born in same state	8,854	98.8%
Born in different state	7,970	89.0%
Foreign born	73	0.8%
Naturalized citizen	31	0.3%
Not a US citizen	24	77.4%

Ancestry

Ancestry	Count	%
Arab	1,318	14.7%
Italian	1,254	14%
French	988	11%
Irish	34	0.4%

Ancestry	Count	%
English	20	0.2%
Dutch	11	0.1%
Polish	10	0.1%

Technology access

Metric	% of households
Computer access	36.6%
Internet access	87.7%

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

Frequently asked questions

What is the ZIP code for Greenfield, OH?

Greenfield, OH has one ZIP code: 45123.

What is the main ZIP code for Greenfield, OH?

The primary ZIP code for Greenfield, OH is 45123. The city uses area code 937 for phone service.

What county is Greenfield, OH in?

Greenfield is located in Highland County, Ohio.

How many ZIP codes are in Greenfield, OH?

Greenfield, OH has 1 ZIP code.

What is the ZIP code for downtown Greenfield, Ohio?

Downtown Greenfield, Ohio is located in ZIP code 45123, which serves as the central business district and historic core of this Highland County community.

What ZIP code covers the Greenfield local school district area?

The Greenfield Local School District, which serves students throughout the city and surrounding areas, is primarily located in ZIP code 45123.