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St. Martin CDP, OH

ZIP 45142 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 45142

45142 has a population of 4,095 with a median age of 40.4 yrs (51.1% male).

Race & Ethnicity
White
98.1%+59% vs US avg
x
Black
0.0%
x
Asian
0.0%
x
Hispanic
0.6%-97% vs US avg
x
Other / Two+
1.3%
x
Age Groups
0–17
20.1%-8% vs US avg
x
18–64
60.4%-2% vs US avg
x
65+
19.4%+19% vs US avg
x
Education
Less than HS
7.9%-29% vs US avg
x
High school
43.3%+65% vs US avg
x
Some college
36.0%+25% vs US avg
x
Bachelor's+
12.8%-62% vs US avg
x
Marital Status
Married
54.1%+13% vs US avg
x
Never married
27.3%-19% vs US avg
x
Divorced
12.4%+20% vs US avg
x
Widowed / Separated
6.2%
x
Diversity Index
4/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
6.3%-45% vs US avg
x
Veterans
10.6%+77% vs US avg
x
Disability
17.7%+32% vs US avg
x
Single Parent
3.6%-56% vs US avg
x
Top ancestry
GermanEnglishIrish

Health & Community Indicators in 45142

Poverty Rate
6.3%-45% vs US avg
x
Veterans
10.6%+77% vs US avg
x
Single Parent
3.6%-56% vs US avg
x
Disability
17.7%+32% vs US avg
x
Uninsured
5.0%-37% vs US avg
x
SNAP Benefits
12.3%+6% vs US avg
x
Private School
0.0%
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population4,095
Median age40.4
Poverty rate6.3%
Demographics statistics
Demographics
White98.1%
Hispanic0.6%
Black0.0%
Asian0.0%