PlainZIP

Greenfield, OH · standard

ZIP Code 45123

Highland County, Ohio - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

8,671
34/sq mi
$62,404
Median income
$161,700
Median home value
13.8%
Bachelor's or higher

The verdict

Greenfield pairs a below-median household income with below-median home values, in a rural, homeowner-dominated area.

34th pct
household income, US ZIPs
30th pct
home value, US ZIPs
34
people per sq mi
68%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 45123 against every reporting US ZIP.

ZIP code 45123 is a mid-sized community (a standard USPS delivery area) in Greenfield, Highland County, Ohio, home to 8,671 residents across 255.0 square miles, a density of 34 people per square mile, in the New York time zone.

ZIP 45123 reports a modest median household income of $62,404 (15% below the Ohio average), while per-capita income is $29,397. The poverty rate stands at 17.6% and the unemployment rate at 2.3%. The typical home here is valued at $161,700 (18% below the state average); renters pay a median of $756 monthly, and 68.4% of units are owner-occupied.

Formal educational attainment runs low here: just 13.8% of adults hold a bachelor's degree or higher, the median age is 36.8, and the average commute is 25 minutes. We also surface 2 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Highland County, so you can benchmark 45123 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 45123

Top 5 sectors by establishment count in Greenfield, OH

Which industries have the most business establishments in ZIP 45123.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 45123, Greenfield, OH · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

8,671

Population

255.0

Area (sq mi)

34

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 45123?

36.8

Median Age

46.8%

Male

53.2%

Female

0.6%

Foreign-Born

White 91.0%
African American 3.1%
Asian 0.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 5.3%
Hispanic or Latino 1.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$62,404

Median Household Income

-15% vs state

$29,397

Per Capita Income

17.6%

Poverty Rate

2.3%

Unemployment Rate

25.1 min

Mean Commute Time

How ZIP 45123 ranks nationally

Greenfield, OH household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$62,404 34th percentile higher than 34% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 54.7%
Bachelor's Degree or Higher 13.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,806

Total Housing Units

3,313

Occupied Units

493

Vacant Units

2.60

Avg Household Size

Occupancy Type

Owner 68.4%
Renter 31.6%

$161,700

Median Home Value

-18% vs state

$756

Median Rent

1967

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-3.0%

YoY Change (2024)

215

HPI Index (2000 = 100)

+115%

Total Change Since 2000

Home values in ZIP 45123 have decreased 3.0% over the past year (2024). Since 2000, this ZIP has seen +115% cumulative appreciation.

Year Annual Change HPI Index
2020 +19.6% 141
2021 +15.2% 162
2022 +2.6% 166
2023 +33.2% 221
2024 -3.0% 215

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 134 business establishments in ZIP 45123, employing approximately 1,773 people with a combined annual payroll of $76,858,000.

134

Businesses

1,773

Employees

$76.9M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Retail trade 27 20.1%
Health care and social assistance 16 11.9%
Accommodation and food services 16 11.9%
Construction 14 10.4%
Other services (except public administration) 14 10.4%
Manufacturing 10 7.5%
Finance and insurance 9 6.7%
Professional, scientific, and technical services 7 5.2%
Real estate and rental and leasing 6 4.5%
Transportation and warehousing 5 3.7%
Administrative and support and waste management and remediation services 4 3.0%
Arts, entertainment, and recreation 3 2.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 45123 vs 45681 →

ZIP 45123 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 45123 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 45123 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 45123 ranks the highest of 3 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
45681 South Salem, OH 1,689 7.8 mi
45612 Bainbridge, OH 5,303 11.1 mi

More ZIP Codes in Highland County

45133 standard
Hillsboro, OH
Pop: 23,900
45697 standard
Winchester, OH
Pop: 4,894
45135 standard
Leesburg, OH
Pop: 4,761
45155 standard
Mowrystown, OH
Pop: 366
45132 standard
Highland, OH
Pop: 262
45172 standard
Sinking Spring, OH
Pop: 131

Related Areas

Highland County Greenfield, OH Ohio

Frequently Asked Questions

What county is ZIP code 45123 in? ▼
ZIP code 45123 (Greenfield) is located in Highland County, Ohio. Highland County contains multiple ZIP codes, see the full list at /counties/highland-oh.
What is the population of ZIP code 45123? ▼
ZIP code 45123 in Greenfield, OH has a population of 8,671 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 45123? ▼
The median household income in ZIP 45123 is $62,404, which is 18% below the national average of $76,288.
What is the average home value in ZIP 45123? ▼
The median home value in ZIP 45123 is $161,700, which is 42% below the national average of $278,155.
What is the demographic makeup of ZIP 45123? ▼
The largest racial group in ZIP 45123 is White at 91.0%. Hispanic or Latino residents make up 1.5% of the population.
How many businesses are in ZIP code 45123? ▼
ZIP code 45123 has 134 business establishments employing approximately 1,773 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 45123? ▼
The top industries by establishment count in ZIP 45123 are: Retail trade (27), Health care and social assistance (16), Accommodation and food services (16). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 45123? ▼
According to the FHFA House Price Index, home values in ZIP 45123 decreased by 3.0% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 115%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 45123? ▼
In ZIP code 45123, 54.7% of residents aged 25+ have a high school diploma or higher, and 13.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 45123? ▼
The mean commute time for workers in ZIP code 45123 is 25.1 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 45123? ▼
In ZIP code 45123, approximately 68.4% of occupied housing units are owner-occupied and 31.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 45123? ▼
The poverty rate in ZIP code 45123 is 17.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.