Grundy County
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- Population
- 53,219
- Area
- 418.13 sq mi (1,082.95 km²), 12.41 sq mi water
- Median age
- 38.3
- Households
- 20,595
- Persons per household
- 2.6
- Median household income
- $92,235
- Median house value
- $271,700
Demographics: 2020–2024 ACS
Today
67°F
Sunny
Tonight
44°F
Mostly Clear then Patchy Fog
Saturday
71°F
Patchy Fog then Sunny
Saturday Night
46°F
Mostly Clear
Cities & Towns in Grundy County
Aux Sable TownshipBracevilleBraceville TownshipBraidwoodCarbon HillChannahonCoal CityDiamondDwightEast BrooklynErienna TownshipFelix TownshipGardnerGarfield TownshipGodleyGoodfarm TownshipGoose Lake TownshipGreenfield TownshipHighland TownshipKinsmanMaine TownshipMazonMazon TownshipMinookaMorrisMorris TownshipNettle Creek TownshipNorman TownshipSaratoga TownshipSenecaSouth WilmingtonVeronaVienna TownshipWauponsee Township