US ZIP Code
45123

Greenfield, OH

Highland County  ·  Ohio

● Active
👥 8,739 Population
💰 $60,614 Median HH Income
▼ 21% below avg ↑ 27% since 2019
🎂 37.3 Median Age ↓ 7% since 2019
🏠 $139,100 Median Home Value
▼ 50% below avg ↑ 30% since 2019
🎓 26.7% College Grads
▼ 31% below avg
📊 4.0% Unemployment
▼ 18% below avg ↓ 68% since 2019
ZIP Code Details
ZIP Code45123
CityGreenfield
StateOhio (OH)
CountyHighland County
Area Code326/937
Elevation837 ft
Latitude39.348842
Longitude-83.388803
TimezoneNew York (DST)
FIPS39071
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 48.5% (4,235) Female 51.5% (4,504) ♀

Race & Ethnicity

White: 91.9%Hispanic: 1.2%Black: 2.4%Asian: 0.2%Other: 4.3%Race
White91.9%
Hispanic1.2%
Black2.4%
Asian0.2%
Other4.3%

Age Breakdown

Under 5
10%
5–17
15%
18–24
7%
25–44
26%
45–64
27%
65+
7%

Key Indicators

Median Age37.3 yrs ↓ 7% since 2019
Avg Household Size2.58
Below Poverty19.2% ▲ 92% above avg
College Grads26.7% ▼ 31% below avg
Unemployment4.0% ▼ 18% below avg
No HS Diploma176 (3.3%)
HS Graduate2,284 (42.8%)
Some College833 (15.6%)
Associates620 (11.6%)
Bachelors645 (12.1%)
Graduate Degree780 (14.6%)

Education

No HS: 3.3%HS Grad: 42.8%Some College: 15.6%Associates: 11.6%Bachelors: 12.1%Graduate: 14.6%Edu
No HS3.3%
HS Grad42.8%
Some College15.6%
Associates11.6%
Bachelors12.1%
Graduate14.6%
Housing & Income

Housing Tenure

Owner: 66.4%Renter: 33.6%Tenure
Owner66.4%
Renter33.6%

Home Value Distribution

Under $50k
13%
$50k–100k
20%
$100k–150k
24%
$150k–200k
16%
$200k–300k
20%
$300k–500k
4%
Over $500k
2%

Financials

Median HH Income$60,614 ▼ 21% below avg ↑ 27% since 2019
Median Home Value$139,100 ▼ 50% below avg ↑ 30% since 2019
Home/Income Ratio2.3x (nat avg ~3.5x)
Median Rent$746/mo ↑ 23% since 2019
Total Units3,863
Vacant Units517
Avg HH Size2.58

Income Distribution

Under $25k
22%
$25k–50k
20%
$50k–75k
13%
$75k–100k
14%
$100k–150k
18%
$150k–200k
8%
Over $200k
5%
Employment & Commute

How People Get to Work

Drove Alone
92%
Walked
2%
Work From Home
6%

Commute Time

Under 15 min
35%
15–30 min
18%
30–45 min
22%
Over 45 min
25%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
10%
1960s–1970s
10%
1980s–1990s
18%
2000+
58%

Summary

Total Units3,863
Vacant517
Owner Occupied66.4%
Renter Occupied33.6%
Avg HH Size2.58
Frequently Asked Questions
ZIP code 45123 is in Greenfield, OH, in Highland County.
ZIP code 45123 is located in Ohio (OH).
ZIP code 45123 is in Highland County, OH.
ZIP 45123 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 45123 is 8,739 people (ACS 2023).
The median household income in ZIP code 45123 is $60,614 (ACS 2023).
The median home value in ZIP 45123 is $139,100 (ACS 2023).
About ZIP Code 45123

ZIP code 45123 is located in Greenfield, Ohio, within Highland County. With a population of 8,739, this is a lightly populated ZIP code with a relatively young community — the median age is 37.3 years. Economically, 45123 is a solidly middle-class ZIP code: the median household income of $60,614 is below the national average.

Real estate in ZIP code 45123 represents one of the more affordable housing markets in the country. The median home value of $139,100 is well below the national average. Renters can expect to pay around $746 per month in median rent. Homeownership is strong here — 66.4% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 30% since 2019.

The population of 45123 is primarily White (91.86%). Residents are moderately educated — 26.7% hold a bachelor's degree or higher, which is below the national average. Poverty affects some residents at 19.2%. Household income has grown by 27% since 2019.

The unemployment rate in 45123 stands at 4.0%, which is below the national average. As in most parts of the country, driving alone is the dominant commute mode at 81%.

Overall, ZIP code 45123 in Greenfield, OH is characterized as solidly middle-class, moderately educated, a relatively young community, and predominantly owner-occupied. With 8,739 residents, a median household income of $60,614, and a median home value of $139,100, it offers a clear picture of life in this part of Ohio.