U.S. PLACE PROFILE
Algonquin, IL
Algonquin is a Village in McHenry County, Illinois. The loaded 2025 population estimate is 30,824.
Published locationIllinois
Population estimate30,8242025 loaded Census estimate
CountyMcHenry CountyPrimary loaded county
Place typeVillageCensus place classification
Coordinates42.15947, -88.32187Census representative point
EXPLORE FROM ALGONQUIN
Distance and nearby-place tools
Only tools with enough qualifying stored data are linked below.
Closest published places
Nearest qualifying Census places by straight-line distance.
Lake in the Hills, IL1.4 miles · N→Carpentersville, IL2.9 miles · SE→
West Dundee, IL3.9 miles · S
Gilberts, IL4.3 miles · SW
Trout Valley, IL4.4 miles · NE
Sleepy Hollow, IL4.8 miles · S
County coverage
Some incorporated places cross county lines. These county-part values come from the loaded Census county-place-part population layer.
| County | 2025 population in this place part |
|---|---|
| Kane County | 8,499 |
| McHenry County | 22,325 |
DATA COVERAGE
What is available for Algonquin
Geographic identityNearby placesPopulation estimate100-mile radius25-mile radius50-mile radius
PRIMARY GEOGRAPHIC SOURCE
U.S. Census Bureau
Place identity, coordinates and geographic identifiers are tied to the loaded Census source record for this location.