Rock
Source:
Wisconsin
Rock is a mid-size county in Wisconsin with 13 ZIP codes, 163,180 people, and upper-quartile household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Rock, WI sits among US counties with an upper-quartile household income, on a mid-size county population base, across a compact ZIP cluster.
- Top 23%
- household income vs 3,210 US counties
- 163,180
- combined ZIP population
- 13
- USPS ZIP codes covered
- $80,193
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Rock lands in the national county income distribution as upper-quartile household income on mid-size county footing (FIPS 55105, 13 ZIPs, combined population 163,180). Sort the ZIP table by population before treating the county mean as uniform.
Upper-income footing across a mid-size ZIP set (13 codes). Sibling delivery areas are close enough that a two-ZIP compare usually separates the county seat from outlying tracts without leaving Rock. Use the density column to spot the urban core before jumping to HUD/FBI county overlays.
Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.
13
Total ZIPs
163,180
Total Population
ZIP Codes in Rock
Side-by-side: Compare 53511 vs 53546 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 53511 | Beloit | 48,929 | 171 |
| 53546 | Janesville | 30,648 | 143 |
| 53545 | Janesville | 23,117 | 360 |
| 53548 | Janesville | 18,558 | 100 |
| 53534 | Edgerton | 11,512 | 55 |
| 53563 | Milton | 10,728 | 64 |
| 53536 | Evansville | 8,503 | 35 |
| 53525 | Clinton | 4,052 | 28 |
| 53521 | Brooklyn | 3,656 | 23 |
| 53576 | Orfordville | 2,319 | 29 |
| 53537 | Footville | 781 | 342 |
| 53505 | Avalon | 354 | 7 |
| 53501 | Afton | 23 | 136 |
Frequently Asked Questions
What is the population of Rock?
Rock has a total population of 163,180 across 13 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Rock?
Rock includes 13 ZIP codes: 53511, 53546, 53545, 53548, 53534, 53563, 53536, 53525, 53521, 53576, and more.