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Old Monroe

A city of 249 people in Missouri
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Now in Old Monroe

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Around town

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Headlines via Google News · Articles belong to their publishers.

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Around town

The places and views that make it Old Monroe

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Outdoors in Old Monroe

Parks & trails →
Conserved land0%none recorded
Trails0.0 mi0 mi per sq mi
Parks & preserves1named on the map

Know a trail or park that’s missing? Anyone can add it to OpenStreetMap, and it shows up here on the next refresh.

Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

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Know Old Monroe

The town at a glance, and the guide to how things work

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About Old Monroe

City in Lincoln County, Missouri, US
249Population
0.3 sq miArea
440 ftElevation

Old Monroe is a city in Lincoln County, Missouri, United States. The population was 249 at the 2020 census.

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

Town numbers

ZIP code63369
Area code636
Living in Old Monroe

Housing in Old Monroe

$344K▲ 7.2% in a year Typical home value · Zillow

The typical Old Monroe home is worth about $344,000, up 7.2% in a year, 29% above the Missouri typical home.

Zillow Home Value Index · Redfin Data CenterHousing market →

Work & commute in Old Monroe

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Most working residents leave Old Monroe for work: only 2% work in town. The top destinations are O'Fallon (9%), St. Peters (6%) and Wentzville (5%). Half commute less than 21 miles.

O'Fallon
9%
St. Peters
6%
Wentzville
5%
Troy
4%
Census LEHD 2023 · ACSWork & commute in Old Monroe →

Health in Old Monroe

Compared with Missouri

1better than MO

of 32 measures CDC estimates. The other 31 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Ssm St. Joseph Hospital WestLake Saint Louis · 9.2 mi · ER
Compass HealthWentzville · 9.8 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Old Monroe · CMS · HRSAHealth in Old Monroe →

Natural hazards in Old Monroe

83
Very high

Expected storm and flood damage is higher than in 83% of U.S. communities.

🌊 Inland flooding🌡️ Heat waves🌪️ Tornadoes
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Old Monroe →

Climate in Old Monroe

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Old Monroe has chilly winters and warm summers. A typical July afternoon reaches 89°, a January night drops to 21°, and about 9 inches of snow falls in a normal winter.

43° / 24°Winter
66° / 44°Spring
87° / 66°Summer
68° / 46°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Old Monroe →

Libraries near Old Monroe

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Nearest: Deer Run BranchO'Fallon · 7.8 miles · 53 hrs a week

Famous people from Old Monroe

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Where Old Monroe is

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Locator map of Old Monroe
Wikimedia Commons · Map: The original uploader was Catbar at English Wikipedia. · CC BY-SA 3.0

Location map

Around town

Bordering towns

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Winfield Old Monroe Winfield
Compare side by side:Old Monroe vs Winfield

How things work in Old Monroe

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Old Monroe is your selected town. The feed includes posts assigned to this town, not a distance radius or ZIP code.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01