La Salle is a township in Monroe County, Michigan, home to about 4,612 people across 27 square miles. Its ZIP code is 48145, and parts of 48133, 48140 and 48161 are in La Salle too.
Homes sold for a median of $187 per square foot in the three months ending August 2026, a seller’s market.
All in La Salle
Mostly Erie; part is in La Salle
Mostly Ida; part is in La Salle
Mostly Monroe Charter Township; part is in La Salle
Each card is that ZIP code’s whole market, including any part outside La Salle. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up La Salle’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Detroit Metropolitan Wayne County Airport (DTW)25 miles away |
|---|---|
| Nearest city of 250,000+ | Toledo, OH15 miles away |
| Nearest city of 1 million+ | Chicago, IL216 miles away |
Straight-line distances from the center of La Salle; 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.
La Salle had 4,639 residents in the 2020 census, down 7% since 2000.
It’s the 390th largest of 1,531 towns in Michigan by population.
Monroe County grew from 32,754 residents in 1900 to 154,809 in 2020.
Monroe County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 17°F. About 35 inches of rain and melted snow fall in a typical year, with about 39 inches of snow.
Source: NOAA 1991–2020 climate normals, Dundee, MI weather station (11 miles away).
37,143 jobs at 2,395 businesses in Monroe County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in La Salle.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|
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 (1 nearby)
Grocery stores
Pharmacies
Libraries
Museums
Theaters and performance venues
Counts are within about 3.5 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.
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Shares ZIP codes with Monroe Charter Township, Monroe City, Erie, Ida, Raisinville, Bedford Township, Luna Pier and Dundee.
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.