Also See: Waterloo, IL ZIP Codes & ZIP Code Maps
The City of Waterloo had a population of 10,637 as of July 1, 2021.
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 elevation is 709 feet.
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.
|Total Population||10,637 (100%)|
|Population in Households||10,423 (98.0%)|
|Population in Families||8,747 (82.2%)|
|Population in Group Quarters1||214 ( 2.0%)|
|Median Household Income||$72,361|
|Average Household Income||$88,174|
|% of Income for Mortgage4||13%|
|Per Capita Income||$35,466|
|Total HU (Housing Units)||4,506 (100%)|
|Owner Occupied HU||3,451 (76.6%)|
|Renter Occupied HU||836 (18.6%)|
|Vacant Housing Units||219 ( 4.9%)|
|Median Home Value||$219,137|
|Average Home Value||$236,765|
|Housing Affordability Index3||181|
|Average Household Size||2.43|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.75%|
|Per Capita Income||2.22%|
|Owner Occupied HU||1.22%|
The table below compares Waterloo to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2021 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.
|Total Population||# 209||85th|
|Population Density||# 546||60th|
|Median Household Income||# 377||73rd|
|Housing Affordability Index||# 378||28th|
|Per Capita Income||# 347||75th|
|Diversity Index||# 990||28th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.