Johnson County
- Population
- 620,631
- Area
- 0.47 sq mi (1.23 km²), 0.01 sq mi water
- Median age
- 38.6
- Households
- 249,531
- Persons per household
- 2.5
- Median household income
- $109,208
- Median house value
- $391,200
Demographics: 2020–2024 ACS
Overnight
64°F
Mostly Clear
Sunday
86°F
Sunny
Sunday Night
66°F
Mostly Clear
Monday
88°F
Sunny