Illinois Gazetteer
Also See Waterloo, IL: ZIP Codes & Maps
The City of Waterloo had a population of 11,129 as of 2020-2024 American Community Survey 5-Year Estimates.
The primary coordinate point for Waterloo is located at latitude 38.3359 and longitude -90.1498 in Monroe County. The formal boundaries for the City of Waterloo encompass a land area of 8.13 sq. miles and a water area of 0.14 sq. miles. Monroe County is in the Central time zone (GMT -6).
The City of Waterloo has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
The City of Waterloo is located within Precinct 31 Election Precinct, a minor civil division (MCD) of Monroe County.
Source: 2020-2024 American Community Survey 5-Year Estimates
POPULATION | |
|---|---|
| Total Population | 11,129 (100%) |
| Population Density | 1,343 per sq mi |
| Diversity Index1 | 11 |
INCOME | |
| Median Household Income | $98,711 |
| Per Capita Income | $47,421 |
| Median Home Value | $249,500 |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 4,818 (100%) |
| Owner Occupied HU | 3,511 (72.9%) |
| Renter Occupied HU | 980 (20.3%) |
| Vacant Housing Units | 327 (6.8%) |
HOUSEHOLDS | |
| Total Households | 4,491 |
| Average Household Size | 2.43 |
| Family Households | 3,055 (68.0%) |
The table below compares Waterloo to the other 1,461 incorporated cities, towns and CDPs in Illinois by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 208 | 86th |
| Population Density | # 521 | 64th |
| Median Household Income | # 267 | 82nd |
| Per Capita Income | # 241 | 84th |
| Diversity Index | # 1004 | 31st |
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.
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