Lockport is a township in St. Joseph County, Michigan, home to about 3,763 people across 28 square miles. It has no ZIP code of its own: it’s part of 49032, 49042, 49072 and 49093.
Homes sold for a median of $149 per square foot across 4 ZIP codes in the three months ending August 2026, and 2 of 4 were seller’s markets.
Mostly Nottawa Township (St. Joseph County); part is in Lockport
Mostly Constantine; part is in Lockport
Mostly Mendon; part is in Lockport
Mostly Three Rivers; part is in Lockport
Each card is that ZIP code’s whole market, including any part outside Lockport. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Lockport’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Lockport well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Gerald R. Ford International Airport (GRR)65 miles away |
|---|---|
| Closer regional airport | Kalamazoo/Battle Creek International Airport (AZO)20 miles away |
| Nearest city of 250,000+ | Fort Wayne, IN64 miles away |
| Nearest city of 1 million+ | Chicago, IL108 miles away |
Straight-line distances from the center of Lockport; 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.
Lockport had 3,729 residents in the 2020 census, down 2% since 2000.
It’s the 478th largest of 1,531 towns in Michigan by population.
St. Joseph County grew from 23,889 residents in 1900 to 60,939 in 2020.
St. Joseph County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 17°F. About 39.9 inches of rain and melted snow fall in a typical year, with about 41 inches of snow.
Source: NOAA 1991–2020 climate normals, Three Rivers, MI weather station (3 miles away).
19,429 jobs at 1,149 businesses in St. Joseph County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
247 doctors and other health care providers list an office in Lockport’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 22 |
|---|---|
| Specialist doctors | 17 |
| Dentists | 10 |
| Nurse practitioners and physician assistants | 54 |
| Mental health providers | 113 |
| Physical and occupational therapists | 24 |
| Optometrists | 2 |
| Chiropractors | 5 |
| Pharmacies | 11 |
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 (18 nearby)
Grocery stores (3 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues (2 nearby)
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.
Public schools here are run by Three Rivers Community Schools, Centreville Public Schools, Constantine Public School District and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Andrews Elementary SchoolThree Rivers | Pre-K–5 | 296 | Public | 2.6 mi |
| Centreville Elementary SchoolCentreville | Pre-K–6 | 482 | Public | 3.8 mi |
| Eastside Elementary SchoolConstantine | Pre-K–2 | 230 | Public | 8.5 mi |
| Mendon Elementary SchoolMendon | Pre-K–5 | 210 | Public | 8.4 mi |
| Pathfinder Educational CenterCentreville | Pre-K–12 | 64 | Special Education | 5.9 mi |
| Norton Elementary SchoolThree Rivers | K–5 | 186 | Public | 6.3 mi |
| Park Elementary SchoolThree Rivers | K–5 | 262 | Public | 5.4 mi |
| Ruth Hoppin SchoolThree Rivers | K–5 | 293 | Public | 2.2 mi |
| Riverside Elementary SchoolConstantine | 3–5 | 256 | Public | 8.7 mi |
| Constantine Alternative EducationConstantine | 6–12 | 104 | Alternative Education | 8.2 mi |
| Constantine Middle SchoolConstantine | 6–8 | 309 | Public | 8.5 mi |
| Mendon MiddleHigh SchoolMendon | 6–12 | 254 | Public | 8.9 mi |
| Three Rivers Middle SchoolThree Rivers | 6–8 | 476 | Public | 1.4 mi |
| Centreville Jr Sr High SchoolCentreville | 7–12 | 407 | Public | 3.9 mi |
| Centreville Adult EducationCentreville | 9–12 | — | Public | 3.9 mi |
| Constantine High SchoolConstantine | 9–12 | 348 | Public | 8.7 mi |
| Three Rivers High SchoolThree Rivers | 9–12 | 632 | Public | 1.3 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Immaculate Conception SchoolThree Rivers | Pre-K–8 | 17 | Roman Catholic | 2.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
Buying or selling around Lockport? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with Three Rivers, Constantine, Fabius, Mendon, Park Township, Nottawa Township (St. Joseph County), Florence, Flowerfield, Porter Township (Cass County), Sherman Township (St. Joseph County), Newberg, Leonidas, Colon and Brady Township (Kalamazoo County).
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.