Census Tract 13.05
Open-data reference.
Rock County, Wisconsin · Janesville GEOID: 55105001305
Tract Snapshot: Census Tract 13.05, Rock County, WI
Census Tract 13.05 is located in Rock County, Wisconsin, inside the municipal boundary of Janesville, and contains a population of approximately 3,773 residents per Census ACS 2023 five-year estimates. Median household income here is $97,824 - a figure the Census Bureau classifies as "Above National Median" when compared with the 2023 national median near $77,000. Median gross rent sits at $1,667 per month, a useful benchmark for renters comparing local housing costs against nearby neighborhoods. Typical owner-occupied homes are valued around $286,200. The tract's poverty rate is 3.7%, measured as the share of residents with income below the federal poverty threshold. Among the 41 Census tracts inside Janesville with reported income data, this tract ranks #3 by median household income - among the highest-earning quarter of tracts in the city.
Source: U.S. Census Bureau, American Community Survey 5-Year 2023 · GEOID: 55105001305 · Note: ACS margins of error widen at tract level
What is a Census Tract, and how current is this data?
Census tracts are small, relatively permanent statistical subdivisions of a county designed by the U.S. Census Bureau to contain roughly 1,200 to 8,000 residents, with boundaries held stable across decades so researchers can track neighborhoods over time. Tract-level figures from the American Community Survey are five-year rolling averages rather than snapshots, that smoothing reduces year-to-year noise in small areas but also means the numbers you see here describe the period ending in the reference year rather than a single moment. Full definition and data-currency notes: methodology.
City-relative analysis
median gross rent is this tract's strongest city-level outlier
According to U.S. Census Bureau ACS 2023 five-year estimates, Census Tract 13.05 ranks #1 of 40 reporting tracts in Janesville for median gross rent. That is the 98th percentile: Local rent is high relative to other city tracts, a housing-cost comparison derived from the same ACS field.
The next most distinctive measure is median household income, at the 93rd percentile within Janesville; each percentile is the share of city tracts with a lower reported value.
This is a comparison within the parent city, not a livability score. Each rank uses tracts with a reported value for the named measure; the methodology explains the source and calculation.
Location
- Census Tract
- Tract 13.05
- GEOID (FIPS)
- 55105001305
- County
- Rock County
- State
- Wisconsin
- Nearest City
- Janesville
- Coordinates
- 42.720299, -88.970889
Income & Housing
Census ACS 5-Year 2023 estimates for this tract
| Metric | Value | Context | Source |
|---|---|---|---|
| Median Household Income | $97,824 | Above National Median vs. US ~$77,000 | ACS 2023 5-Year |
| Median Gross Rent | $1,667/mo | Includes utilities in estimate | ACS 2023 5-Year |
| Median Home Value | $286,200 | Owner-occupied units only | ACS 2023 5-Year |
| Poverty Rate | 3.7% | Below federal poverty threshold | ACS 2023 5-Year |
What do people ask about Janesville, WI?
What is the population of Census Tract 13.05? +
Census Tract 13.05 in Rock County, Wisconsin has a population of approximately 3,773, based on U.S. Census Bureau ACS 2023 estimates.
What is the median household income in Census Tract 13.05? +
The median household income in Census Tract 13.05 (Rock County, WI) is $97,824, based on ACS 5-Year 2023 data. This is considered "Above National Median" relative to the national median of approximately $77,000.
What is the median rent in this area? +
The estimated median gross rent in Census Tract 13.05 is $1,667 per month, according to Census ACS 2023 data.
What is the poverty rate in Census Tract 13.05? +
Approximately 3.7% of residents in Census Tract 13.05 have income below the federal poverty threshold, based on Census ACS 2023 data.
How does Census Tract 13.05 compare to other neighborhoods in Janesville? +
Among the 41 Census tracts inside Janesville with reported income data, this tract ranks #3 by median household income - among the highest-earning quarter of tracts in the city, based on ACS 5-Year 2023 median household income across all reporting tracts in the city.
Source: U.S. Census Bureau ACS 5-Year Estimates 2023. Census tract boundaries and GEOID from 2023 TIGER/Line files. Population and income data may reflect margins of error for smaller tracts. Last updated: 2026 U.S. Census Bureau ACS 5-Year Estimates 2023. Census tract boundaries and GEOID from 2023 TIGER/Line files. Population and income data may reflect margins of error for smaller tracts. Last updated: 2026
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Census Bureau ACS. Consult a qualified professional before making decisions based on this data.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.