Waterloo, 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 Waterloo, Monroe County.
| City | Waterloo |
| State | Illinois (IL) |
| County | Monroe |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.335886 |
| Longitude | -90.149834 |
| Population | 11,129 |
| Density | 515.1 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 62298 |
| Area Code | 217 |
| County Seat | Waterloo |
| School District | Waterloo Community Unit School District 5 |
Waterloo is a locality in Monroe County, Illinois, United States. It has a population of 11,129. The population density is 515.1 people per km². Waterloo is located at 38.3359°N, 90.1498°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 62298.
Waterloo rests in a landscape shaped by the slow, persistent erosion of ancient seas, where rolling hills, cloaked in a verdant tapestry of cornfields and woodlands, meet the broad, fertile expanse of the American Bottom. It lies 12.5 miles south-east of Oakville, MO (from Oakville, MO: bearing 138°T), and is situated 7.9 miles south-south-east of Columbia. The air here, especially in the late afternoon, carries a scent of turned earth and distant woodsmoke, a testament to the agricultural soul of the region. Mature oaks and maples stand sentinel along the country lanes, their branches creating a dappled canopy that shifts with the breeze, while the sun, as it begins its descent, bathes the western horizon in hues of apricot and rose, casting long, gentle shadows across the land. The very character of Waterloo is one of quiet resilience, a place where the vastness of the sky above seems to lend a certain spaciousness to the lives lived below. The history of Waterloo is deeply entwined with the rich agricultural heritage of Monroe County, its economy long anchored by the bounty of its fertile soil, producing grains and livestock that have sustained generations. Early settlers, drawn by the promise of this land, established communities that have since grown into the familiar streets and businesses of present-day Waterloo. The echoes of its past can be felt in the sturdy architecture of its older buildings and the enduring traditions of its people, a blend of German ancestry that contributes to a distinct local flavor. While agriculture remains a cornerstone, the surrounding area has also seen the growth of small businesses and industries, contributing to a steady, unhurried pace of life that allows for a deep connection to the land and to each other.
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This page provides an interactive Google map of Waterloo, 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 Waterloo and Monroe County.
Detailed location data for Waterloo includes the ZIP code (62298), telephone area code (217), county seat of Monroe County (Waterloo), and school district assignment (Waterloo Community Unit School District 5). 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 Waterloo 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. |