Population Government data
The Janesville area's population grew 1.7% from 2020 to 2025 (163,763 → 166,472), ranking #226 of 387 metros for growth (typical metro +2.5%). People moving in (net +2,798) account for more than all of the change.
Census Bureau population estimates, July 1 of each year, 2020–2025.
New homes permitted Government data
New-home permits in Janesville are down 37% from 2021 to 2025 (617 → 388). Permits are a sign of construction activity, not a count of open jobs.
Census Building Permits Survey, annual 2021–2025.
Local housing Government data
The Janesville area has about 71,746 homes. 63% were built before 1980 (typical metro 45%), so its housing is older than most; 8% were built in 2010 or later. Older homes often need more repair, replacement and upgrade work. 72% of households own their home, and the median home value is $259,100.
Census American Community Survey, 2024 1-year estimates (table DP04).
Highest-paying trades
All 22 trades
Click a column to sort. Jobs are employment estimates, not open positions.
| Trade | Median pay | Jobs | U.S. rank |
|---|---|---|---|
| Electrical Lineworker | $103,560 | 60 | #87 |
| Construction Supervisor | $97,310 | 560 | #32 |
| Electrician | $82,170 | 560 | #35 |
| Plumber | $79,070 | 140 | #61 |
| Concrete Finisher | $77,990 | 100 | #10 |
| Carpenter | $75,390 | 360 | #22 |
| Sheet Metal Worker | $70,130 | 30 | #88 |
| Diesel Mechanic | $67,140 | 240 | #50 |
| Heavy Equipment Operator | $66,320 | 240 | #106 |
| Roofer | $63,310 | 70 | #30 |
| Building Inspector | $62,900 | 30 | #231 |
| Industrial Machinery Mechanic | $62,620 | 300 | #236 |
| Welder | $60,000 | 520 | #56 |
| HVAC Technician | $59,770 | 150 | #193 |
| Telecom Equipment Installer | $57,230 | 40 | #276 |
| Maintenance Technician | $56,610 | 770 | #48 |
| Construction Laborer | $55,690 | 480 | #74 |
| Auto Body Repairer | $55,210 | 80 | #139 |
| Auto Mechanic | $53,240 | 390 | #118 |
| Painter | $52,070 | 50 | #93 |
| Machinist | $46,810 | 340 | #346 |
| Landscaper | $37,870 | 460 | #174 |
Pay: BLS OEWS, May 2025 (metro-level). Real pay: BEA price parities, 2024. How we calculate
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