Centralia, Illinois — interactive Google street map, satellite and terrain views, Street View, live National Weather Service conditions and 7-day forecasts, real-time local and world news, and an editorial description of Centralia, Marion County.
| City | Centralia |
| State | Illinois (IL) |
| County | Marion |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.525049 |
| Longitude | -89.133404 |
| Population | 11,856 |
| Density | 565.5 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 62801 |
| Area Code | 618 |
| County Seat | Salem |
| School District | Centralia High School District 200 |
Centralia is a locality in Marion County, Illinois, United States. It has a population of 11,856. The population density is 565.5 people per km². Centralia is located at 38.5250°N, 89.1334°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 62801.
Centralia rests on a stretch of Illinois land where the sky feels vast and the horizon stretches with a quiet ambition. It lies 42.3 miles east of O'Fallon, IL (from O'Fallon, IL: bearing 96°T), and is situated 1.7 miles south-south-west of Central City. The terrain here is mostly flat, the soil a rich, dark loam that has been worked for generations, giving rise to broad fields of corn and soybeans that unfurl like rumpled green carpets under the wide, often dramatic, Illinois sky. Scattered farmsteads dot the landscape, their silos standing like stoic sentinels against the prevailing winds, and the air, particularly in the humid embrace of summer evenings, carries the sweet, earthy scent of growing things and the distant hum of agricultural machinery. The occasional stand of deciduous trees, their branches reaching skyward in a patient, enduring gesture, offers pockets of shade, and the slow, winding creeks that thread through the farmland reflect the ever-shifting moods of the heavens, from the pale, washed-out blues of midday to the bruised purples and fiery oranges of sunset. The story of Centralia is deeply entwined with the earth beneath it, a narrative shaped by the black veins of coal that once fueled its prosperity. This subterranean legacy is still palpable, a silent echo of the miners and their labor that once defined the town's character and economy. While the deep mines have long since been silenced, the spirit of industry, though perhaps tempered, persists in Centralia's ongoing efforts to diversify, finding new avenues for growth in manufacturing and services. The town itself, a grid of streets lined with a mix of older brick structures and more modern businesses, possesses a settled, comfortable rhythm, a place where the pace of life allows for neighbourly nods and the quiet observation of the seasons turning. Notable among its features is the vast expanse of Lake Centralia, a man-made reservoir that offers a refreshing counterpoint to the agricultural plains, its waters mirroring the sky and providing a place for quiet recreation and a different kind of natural beauty within the county.
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This page provides an interactive Google map of Centralia, Illinois with street, satellite and terrain views and integrated Street View imagery. 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 Centralia and Marion County.
Detailed location data for Centralia includes the ZIP code (62801), telephone area code (618), county seat of Marion County (Salem), and school district assignment (Centralia High School District 200). 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 Centralia is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | June 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. |