Fish Lake is a community in LaPorte County, Indiana, home to about 684 people across 1.5 square miles. It has no ZIP code of its own: it’s part of 46574.
Homes sold for a median of $136 per square foot in the three months ending August 2026, a seller’s market.
Mostly Walkerton; part is in Fish Lake
Each card is that ZIP code’s whole market, including any part outside Fish Lake. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Fish Lake’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Fish Lake well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Chicago Midway International Airport (MDW)69 miles away |
|---|---|
| Closer regional airport | South Bend International Airport (SBN)19 miles away |
| Nearest city of 250,000+ | Chicago, IL67 miles away |
Straight-line distances from the center of Fish Lake; 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.
Fish Lake had 1,052 residents in the 2020 census, up 4% since 2010.
It’s the 422nd largest of 693 towns in Indiana by population.
LaPorte County grew from 38,386 residents in 1900 to 112,417 in 2020.
LaPorte 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 40.2 inches of rain and melted snow fall in a typical year, with about 55 inches of snow.
Source: NOAA 1991–2020 climate normals, Plymouth, IN weather station (12 miles away).
34,909 jobs at 2,297 businesses in LaPorte County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
6 doctors and other health care providers list an office in Fish Lake.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Dentists | 1 |
| Nurse practitioners and physician assistants | 1 |
| Mental health providers | 2 |
| Chiropractors | 1 |
| Pharmacies | 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 (2 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 1 mile 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 John Glenn School Corporation. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Walkerton Elementary SchoolWalkerton | Pre-K–6 | 589 | Public | 0.4 mi |
| Harold C Urey Middle SchoolWalkerton | 7–8 | 301 | Public | 0.3 mi |
| John Glenn High SchoolWalkerton | 9–12 | 629 | Public | 0.7 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 Walkerton and Koontz Lake.
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.