Wonder Lake, IL Profile: Facts & Data


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Wonder Lake, Illinois - Basic Facts

The Village of Wonder Lake had a population of 4,059 as of July 1, 2020.

The primary coordinate point for Wonder Lake is located at latitude 42.3853 and longitude -88.3473 in McHenry County. The formal boundaries for the Village of Wonder Lake encompass a land area of 4.78 sq. miles and a water area of 1.16 sq. miles. McHenry County is in the Central time zone (GMT -6). The elevation is 840 feet.

The Village of Wonder Lake (GNIS ID: 2399729) 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 Village of Wonder Lake is located within Township of McHenry, a minor civil division (MCD) of McHenry County.

Alternate Unofficial Names for Wonder Lake: Sunrise Ridge.


Wonder Lake, IL Data & Demographics (As of July 1, 2020)


Total Population 4,059 (100%)
Population in Households 4,059 (100.0%)
Population in Families 3,481 (85.8%)
Population in Group Quarters1 0
Population Density 841
Diversity Index2 31


Median Household Income $75,360
Average Household Income $91,711
% of Income for Mortgage4 10%
Per Capita Income $33,441
Wealth Index5 99


Total HU (Housing Units) 1,669 (100%)
Owner Occupied HU 1,219 (73.0%)
Renter Occupied HU 231 (13.8%)
Vacant Housing Units 220 (13.2%)
Median Home Value $185,410
Average Home Value $210,152
Housing Affordability Index3 229


Total Households 1,449
Average Household Size 2.8
Family Households 1,086
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population 0.17% 1.33%
Households 0.35% 1.51%
Families 0.21% 1.48%
Median Household Income   1.22%
Per Capita Income   1.88%
Owner Occupied HU   1.73%


Wonder Lake, IL - Peer Comparisons by Rank and Percentile

The table below compares Wonder Lake to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2020 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 # 376 73rd
Population Density # 847 38th
Median Household Income # 291 79th
Housing Affordability Index # 633 46th
Per Capita Income # 415 70th
Diversity Index # 374 73rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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