Home age in ZIP 61107, Rockford, IL: median built 1965

Home age is not roof age, and the Census does not record replacements. ZIP 61107 in Rockford, IL: median home built 1965; 90.7% of homes (12,433) are older than 25 years and 1.4% (193) were built since 2010, out of 13,711 homes.

U.S. Census Bureau, American Community Survey 2019 to 2023 (5-year estimates), retrieved October 9, 2026. Area = Census ZIP Code Tabulation Area 61107.

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Share of homes in ZIP 61107 by decade builtColumns from the pre-1940 decade on the left to 2020 and later on the right. pre-1940 16.3 percent; 1940s 6.5 percent; 1950s 20.2 percent; 1960s 13.7 percent; 1970s 11.9 percent; 1980s 10.3 percent; 1990s 11.8 percent; 2000s 7.9 percent; 2010s 1.3 percent; 2020+ 0.2 percentpre-1940: 2,231 homes, 16.3%16.3%pre-1940Winnebago County: 15.4%1940s: 888 homes, 6.5%6.5%1940sWinnebago County: 6.4%1950s: 2,770 homes, 20.2%20.2%1950sWinnebago County: 14.2%1960s: 1,878 homes, 13.7%13.7%1960sWinnebago County: 12.8%1970s: 1,632 homes, 11.9%11.9%1970sWinnebago County: 14.9%1980s: 1,415 homes, 10.3%10.3%1980sWinnebago County: 10.7%1990s: 1,619 homes, 11.8%11.8%1990sWinnebago County: 12.3%2000s: 1,085 homes, 7.9%7.9%2000sWinnebago County: 10.9%2010s: 172 homes, 1.3%1.3%2010sWinnebago County: 2.0%2020+: 21 homes, 0.2%0.2%2020+Winnebago County: 0.2%Built 1999 or earlier: 90.7% of homes (12,433)ZIP 61107, built before 2000built 2000 or laterWinnebago County

Share of the 13,711 housing units in the ZIP, by decade built. The red marks are Winnebago County. This counts houses, not roofs: a roof is replaced several times in the life of a house, and no federal survey records when.

ZIP 61107 next to Rockford and Winnebago County

IndicatorZIP 61107RockfordWinnebago CountyRank among 4 ZIPs of Rockford on this site
Housing units13,71168,027124,9591st of 4 largest
Median year built1965196219712nd of 4 oldest
Built before 198068.6%74.1%63.8%
Built before 200090.7%no data86.8%3rd of 4 highest share
Built since 20101.4%no data2.3%
Owner-occupied homes69.7%53.8%65.2%2nd of 4 highest share
Single-family units76.6%64.6%no data
Median home value$165,200 (+/- $4,650)$120,900$155,1002nd of 4 highest
Median household income$75,492 (+/- $4,993)$53,328no data2nd of 4 highest

City figures are for the Census place, county figures for the county; “no data” means the Census file does not publish that figure. Value and income are survey estimates, the plus-or-minus is the 90% margin of error.

Every decade in ZIP 61107

BuiltShare of Winnebago CountyShare of ZIPHomes in ZIP 61107
2020+0.2%0.2%21
2010s2.0%1.3%172
2000s10.9%7.9%1,085
1990s12.3%11.8%1,619
1980s10.7%10.3%1,415
1970s14.9%11.9%1,632
1960s12.8%13.7%1,878
1950s14.2%20.2%2,770
1940s6.4%6.5%888
pre-194015.4%16.3%2,231

Counts are Census estimates of housing units by year built (table B25034). If a roof had never been replaced, it would be 3 to 6 years old on a house from the 2020s, 17 to 26 on one from the 2000s, 37 to 46 on one from the 1980s and 87 or more on one from before 1940. Most older houses have had at least one replacement, and the Census does not record when.

What the numbers say about ZIP 61107

ZIP 61107 has 13,711 housing units: 12,433 (90.7%) were built before 2000, 193 (1.4%) in 2010 or later, and 2,770 (20.2%) in the 1950s, its largest era. The median year built is 1965 (Rockford: 1962), so 3 years newer than the city.

Housing mix and money, from the same survey: 69.7% of occupied homes are owner-occupied; 76.6% of units are single-family houses; the median owner-occupied home is valued at $165,200, give or take $4,650; median household income is $75,492, give or take $4,993; the ZIP holds 20.2% of the housing units the Census counts in Rockford, 13,711 of them. These are survey estimates with margins of error, and for a small ZIP the margin can be wide.

Reading this for roofs, carefully: the Census records when a house was built, never when its roof was last replaced. If every roof were still the one installed with its house, 10,814 units (78.9%, built before 1990) would be past the 30-year top of the usual asphalt-shingle range, 1,619 (11.8%, the 1990s) would mostly sit past it, 1,085 (7.9%, the 2000s) would mostly be inside the 20 to 30 year window and 193 (1.4%, 2010 onward) would be younger than it. Most older roofs have been replaced, so treat these as the pool of houses where an old roof is possible, not as a count of old roofs.

Roof age calculator for ZIP 61107

Enter the year your house was built, and the year the roof was last replaced if you know it. It starts at the median year built for this ZIP. The share of neighbours’ homes older than yours comes from this ZIP’s own decade counts.

–years old (roof)
–of homes in ZIP 61107 are older
–vs. the ZIP median year built

Material ranges are general planning figures (the same ones as on our roof-age page), not warranties. Sun, storms, attic ventilation and installation quality move them. The decade shares assume homes were built evenly within each decade. This is not an inspection: a roofer on the roof decides.

Map: ZIP 61107 among Rockford’s ZIP areas

Map of ZIP 61107 and nearby ZIP areas, shaded by the share of homes built before 2000ZIP 61108: 12,650 homes, 95.9% built before 2000, median year 196861108ZIP 61104: 9,253 homes, 95.7% built before 2000, median year 193861104ZIP 61114: 6,599 homes, 88.8% built before 2000, median year 198261114ZIP 61107: 13,711 homes, 90.7% built before 2000, median year 196561107
  • under 20% built before 2000
  • 40 to 60%
  • 80% or more
  • Dot size = housing units. Red ring = ZIP 61107. Click a dot to open that ZIP.

Closest ZIP areas

ZIPMilesMedian builtPre-2000
611141.6 N198288.8%
611082.1 S196895.9%
611044.6 SW193895.7%

Distance is between Census ZIP centres.

Storm backdrop: Winnebago County

A ZIP is too small for its own hail record, so this is the county. FEMA’s National Risk Index rates Winnebago County Relatively Moderate overall (92.4 of 100), Relatively High for hail (97.1), Relatively High for strong wind (97.3) and Relatively High for tornado (97.3). NOAA logged 83 hail reports in the county, on 27 days with hail of 1 inch or more in the full years 2014 to 2025.

FEMA National Risk Index, December 2025 version, county level. This product uses FEMA’s National Risk Index data but is not endorsed by FEMA.

Where to go from here

Other roofing cities near ZIP 61107: Janesville, WI (27 miles), Kenosha, WI (63 miles), Racine, WI (69 miles).

Questions

How old are the homes in ZIP 61107?

Of the 13,711 housing units, 9,399 (68.6%) were built before 1980, 12,433 (90.7%) before 2000 and 193 (1.4%) from 2010 on (Census ACS 2019 to 2023, survey estimate).

Does a house's age tell me how old its roof is in 61107?

No. ACS records the year the structure was built, not the year the roof was last replaced. With 9,399 units built before 1980 in this ZIP, many roofs are replacements rather than originals. Ask the seller for permit records or have a roofer inspect the roof.

Which nearby ZIP has the oldest housing?

Of the 3 closest ZIP areas we cover, 61108 (2.1 miles S) has the largest share built before 2000, 95.9%, against 90.7% in 61107.

Source: U.S. Census Bureau, American Community Survey 5-year estimates 2019 to 2023, tables B25034 (year structure built), B25035, B25003, B25024, B25077 and B19013, ZIP Code Tabulation Areas; ZIP-to-city assignment from the Census 2020 ZCTA-to-place relationship file (a ZIP is assigned to a city when more than half of its land area lies inside it). A ZCTA is not a USPS ZIP code: it approximates one and can differ at the edges. Public domain. The 12 ZIP-specific figures above differ from ZIP to ZIP.

Information only, not a roof inspection. Pickaroofer does not know the condition of any individual roof.