Grundy County
- Population
- 13,819
- Area
- 360.45 sq mi (933.55 km²), 0.68 sq mi water
- Median age
- 42.7
- Households
- 5,161
- Persons per household
- 2.6
- Median household income
- $47,593
- Median house value
- $154,000
Demographics: 2020–2024 ACS
Tonight
64°F
Partly Cloudy1% precip
Friday
84°F
Mostly Sunny then Chance Showers And Thunderstorms37% precip
Friday Night
65°F
Chance Showers And Thunderstorms then Areas Of Fog37% precip
Saturday
80°F
Patchy Fog71% precip