Beaver Dam is a city in Ohio County, Kentucky, home to about 3,524 people across 3.0 square miles. Its ZIP code is 42320.
Homes sold for a median of $142 per square foot in the three months ending August 2026, a seller’s market.
Mostly Beaver Dam; also McHenry
Each card is that ZIP code’s whole market, including any part outside Beaver Dam. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Beaver Dam’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Louisville Muhammad Ali International Airport (SDF)82 miles away |
|---|---|
| Closer regional airport | Owensboro Daviess County Airport (OWB)29 miles away |
| Nearest city of 250,000+ | Nashville-Davidson, TN84 miles away |
| Nearest city of 1 million+ | Chicago, IL310 miles away |
Straight-line distances from the center of Beaver Dam; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Beaver Dam had 3,531 residents in the 2020 census, up 16% since 2000.
It’s the 112th largest of 553 towns in Kentucky by population.
Ohio County grew from 27,287 residents in 1900 to 23,772 in 2020.
Ohio County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 24°F. About 51.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Beaver Dam, KY weather station (5 miles away).
7,858 jobs at 371 businesses in Ohio County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2022 (private employers; jobs counted where people work).
53 doctors and other health care providers list an office in Beaver Dam.
Nearest hospitals
Providers with an office here
| Primary care doctors | 6 |
|---|---|
| Specialist doctors | 5 |
| Dentists | 3 |
| Nurse practitioners and physician assistants | 17 |
| Mental health providers | 4 |
| Physical and occupational therapists | 16 |
| Optometrists | 1 |
| Chiropractors | 1 |
| Pharmacies | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (2 nearby)
Grocery stores
Pharmacies
Libraries
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1800.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Ohio County. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Beaver Dam Elementary SchoolBeaver Dam | Pre-K–6 | 601 | Public | 2.1 mi |
| Southern Elementary SchoolBeaver Dam | Pre-K–6 | 269 | Public | 3.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with McHenry.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.