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Ohio›Brown County

St. MartinOH

A town settled in 1864, now home to 171 people.

Is St. Martin a good place to live?

St. Martin’s median age is 56.9 years, above both Ohio’s towns (41.7 years) and U.S. towns (40.5 years). St. Martin has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

171 people, and everyone knows the way

In a town this size, neighbors are the best guide. Ask them anything.

Nearby towns

The data

Ordered by what stands out in St. Martin.

Work & commute

St. Martin has 0.2 jobs for every working resident, so most commute out

1%work in town

Among residents in St. Martin, 18% live below the poverty line. Only 1% of working residents stay in St. Martin for work; the rest commute out. The mean commuting time locally is 34 minutes. The top destinations are Cincinnati (6%), Sharonville (5%) and Columbus (5%).

St. MartinTypical Ohio townTypical U.S. town
Average trip to work34 minutes24 minutes25 minutes
Below the poverty line18%9.1%9.6%
Median household income$56,000$75,000$80,000
Working residents who work in town1%6.9%8%

Where working residents work

In St. Martin1%
Cincinnati6%
Sharonville5%
Columbus5%
Blue Ash4%
26 mi
median commute distance
17
jobs based in St. Martin
A commuter town
jobs vs. working residents

Census LEHD 2023 · ACS

Climate

Four seasons and pleasant summers: that is St. Martin’s year

27″snow a winter

A July afternoon gets to about 85° and a January night to 22°, and about 27 inches of snow fall in a winter.

Typical low → high °F

Winter24–41°
Spring41–64°
Summer61–83°
Fall44–66°
Oct 22
typical first frost
Apr 17
typical last frost
+1.3°
vs. the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Natural hazards

The biggest natural risk in St. Martin is inland flooding, at a low overall level

38risk score of 100

Expected damage from storms and floods is lower here than in 62% of U.S. communities. FEMA puts 63% of St. Martin’s expected hazard losses down to inland flooding, and 10% to tornadoes.

FEMA risk score
38Low riskLowerHigher
Inland floodingTornadoesStrong wind

FEMA National Risk Index · OpenFEMA

Health

How healthy St. Martin is

In St. Martin, 27% of adults have been diagnosed with depression, and 39% have obesity. The town does better than the Ohio average on 3 of 32 CDC measures and worse on 1. 40% of adults sleep under 7 hours locally.

St. MartinTypical Ohio townTypical U.S. town
Sleep under 7 hours (CDC PLACES)40%38%36%
Depression (CDC PLACES)27%26%23%
Obesity (CDC PLACES)39%38%35%
Get no exercise (CDC PLACES)29%28%25%
32 measures vs. Ohio
3 better28 too close to call1 worse
What stands outSt. MartinOH
Fewer older adults who have lost all their teeth10.3%15.3%
Fewer adults facing a utility shut-off6.4%8.3%
Fewer adults screened for colon cancer58.9%65.2%
Highland District Hospital
14.8 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health

CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA

Keep exploring

Everything we know about St. Martin

15pages on St. Martin
Getting set up

Moving to St. Martin: who provides what

St. Martin is unincorporated, so Brown County and regional agencies provide most services.

PowerDuke Energy16.8¢/kWh · EIA 2025HIFLD · EIA
Internet5 providers86% of addresses get 100/20 MbpsFCC
Trash & county servicesBrown CountyBrown County provides services here
SchoolsFayetteville-Perry Local School DistrictWhich school depends on your addressNCES
Register to voteOnlineIn Ohio you can register online until 30 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before).vote.gov
Who runs elections hereDirector, Brown County Board of ElectionsBrown County; contacts on the Handbook page.FVAP, Dec 2025
ZIP codes45142, 4511845142 84% · 45118 16%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.

A commuter town

99% of working residents leave St. Martin for work

Where St. Martin’s working residents go each day. Line width shows the share.

6% → Cincinnati Cincinnati 6% 5% → Sharonville Sharonville 5% 5% → Columbus Columbus 5% 4% → Blue Ash Blue Ash 4% 3% → Fayetteville Fayetteville 3% 3% → Hillsboro Hillsboro 3% St. Martin · 1% stay
17jobs based in St. Martin
1%of working residents work in town
26 mimedian commute distance

Census LEHD 2023

After high school

Colleges nearby

1 within 15 miles of the center of St. Martin

About St. Martin

Unincorporated community in Ohio, United States

St. Martin is an unincorporated community and former village in Brown County, Ohio, United States. The community is served by the Fayetteville (45118) post office. The population was 200 at the 2020 census. In November 2011, voters chose to unincorporate St. Martin, and it now falls solely under the jurisdiction of Perry Township.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Area
1.9 sq mi
Elevation
978 ft

Questions about St. Martin

Short answers, built from the data on this page.

Is St. Martin, OH a good place to live?

St. Martin has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

St. Martin is in here

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