Saint John, Lake County
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| City | Saint John |
| State | Indiana (IN) |
| County | Lake |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 41.450036 |
| Longitude | -87.470038 |
| Population | 18,493 |
| Density | 680.0 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 47613, 46373 |
| Area Code | 812, 260 |
| County Seat | Crown Point |
Saint John is a locality in Lake County, Indiana, United States. It has a population of 18,493. The population density is 680.0 people per km². Saint John is located at 41.4500°N, 87.4700°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 46373.
Saint John unfolds across a landscape of gentle, rolling terrain, a testament to the glacial forces that shaped this corner of Indiana. It lies 2.1 miles south-south-west of Schererville, IN (from Schererville, IN: bearing 202°T), and is situated 9.1 miles west-south-west of Lake. Wide, open fields, stitched with the straight lines of agricultural plots, stretch towards horizons that are often softened by the hazy warmth of summer or the crisp, blue clarity of a winter sky. Here and there, stands of mature oak and maple trees punctuate the openness, their branches reaching like gnarled fingers towards the expansive sky, offering dappled shade that shifts with the slow crawl of the sun. The air, particularly in the early morning, carries a clean, earthy scent, a blend of tilled soil and the dew-kissed grasses that line the roads. The origins of Saint John are intertwined with the fertile lands that have long sustained its economy, primarily through agriculture, with corn and soybeans dominating the vibrant green and gold of the growing season. This agricultural heartland has seen generations of families cultivate the soil, their lives marked by the predictable rhythms of planting and harvest. While the agricultural roots remain strong, Saint John has also embraced growth, becoming a desirable place for commuters seeking a quieter pace while still having access to the opportunities of nearby urban centers. This duality is palpable; you can feel the enduring connection to the land in the enduring charm of its older homes and the quiet diligence of its residents, a spirit that has adapted but not entirely surrendered to the modern age.
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This page provides an embedded street and satellite map of Saint John, Indiana — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 41.450036, -87.470038. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Saint John and Lake County.
Detailed location data for Saint John includes the ZIP code (47613), telephone area code (812, 260), county seat of Lake County (Crown Point), and school district assignment. These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Saint John is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |