Home age in ZIP 77840, College Station, TX: median built 1990

Home age is not roof age, and the Census does not record replacements. ZIP 77840 in College Station, TX: median home built 1990; 67.5% of homes (17,150) are older than 25 years and 17.4% (4,432) were built since 2010, out of 25,423 homes.

U.S. Census Bureau, American Community Survey 2019 to 2023 (5-year estimates), retrieved October 9, 2026. Area = Census ZIP Code Tabulation Area 77840.

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Share of homes in ZIP 77840 by decade builtColumns from the pre-1940 decade on the left to 2020 and later on the right. pre-1940 1.3 percent; 1940s 1 percent; 1950s 3.2 percent; 1960s 7.1 percent; 1970s 16.4 percent; 1980s 21.7 percent; 1990s 16.8 percent; 2000s 15.1 percent; 2010s 16.3 percent; 2020+ 1.2 percentpre-1940: 321 homes, 1.3%1.3%pre-1940Brazos County: 1.7%1940s: 248 homes, 1.0%1%1940sBrazos County: 1.8%1950s: 807 homes, 3.2%3.2%1950sBrazos County: 3.4%1960s: 1,816 homes, 7.1%7.1%1960sBrazos County: 5.0%1970s: 4,158 homes, 16.4%16.4%1970sBrazos County: 12.0%1980s: 5,518 homes, 21.7%21.7%1980sBrazos County: 17.4%1990s: 4,282 homes, 16.8%16.8%1990sBrazos County: 14.9%2000s: 3,841 homes, 15.1%15.1%2000sBrazos County: 19.9%2010s: 4,134 homes, 16.3%16.3%2010sBrazos County: 21.0%2020+: 298 homes, 1.2%1.2%2020+Brazos County: 2.8%Built 1999 or earlier: 67.5% of homes (17,150)ZIP 77840, built before 2000built 2000 or laterBrazos County

Share of the 25,423 housing units in the ZIP, by decade built. The red marks are Brazos 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 77840 next to College Station and Brazos County

IndicatorZIP 77840College StationBrazos CountyRank among 1 ZIPs of College Station on this site
Housing units25,42350,73099,118
Median year built199019981996
Built before 198028.9%19%24%
Built before 200067.5%no data56.3%
Built since 201017.4%no data23.8%
Owner-occupied homes11.1%35.9%46.8%
Single-family units25.1%49.5%no data
Median home value$241,000 (+/- $19,964)$326,500$279,700
Median household income$31,278 (+/- $2,623)$51,776no data

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 77840

BuiltShare of Brazos CountyShare of ZIPHomes in ZIP 77840
2020+2.8%1.2%298
2010s21.0%16.3%4,134
2000s19.9%15.1%3,841
1990s14.9%16.8%4,282
1980s17.4%21.7%5,518
1970s12.0%16.4%4,158
1960s5.0%7.1%1,816
1950s3.4%3.2%807
1940s1.8%1.0%248
pre-19401.7%1.3%321

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 77840

ZIP 77840 has 25,423 housing units: 17,150 (67.5%) were built before 2000, 4,432 (17.4%) in 2010 or later, and 5,518 (21.7%) in the 1980s, its largest era. The median year built is 1990 (College Station: 1998), so 8 years older than the city.

Housing mix and money, from the same survey: 11.1% of occupied homes are owner-occupied; 25.1% of units are single-family houses; the median owner-occupied home is valued at $241,000, give or take $19,964; median household income is $31,278, give or take $2,623; the ZIP holds 50.1% of the housing units the Census counts in College Station, 25,423 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, 12,868 units (50.6%, built before 1990) would be past the 30-year top of the usual asphalt-shingle range, 4,282 (16.8%, the 1990s) would mostly sit past it, 3,841 (15.1%, the 2000s) would mostly be inside the 20 to 30 year window and 4,432 (17.4%, 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 77840

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 77840 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 77840 among College Station’s ZIP areas

Map of ZIP 77840 and nearby ZIP areas, shaded by the share of homes built before 2000ZIP 77802: 12,189 homes, 72.2% built before 2000, median year 198477802ZIP 77803: 10,586 homes, 75.7% built before 2000, median year 198277803ZIP 77801: 7,221 homes, 63% built before 2000, median year 199277801ZIP 77840: 25,423 homes, 67.5% built before 2000, median year 199077840
  • under 20% built before 2000
  • 40 to 60%
  • 80% or more
  • Dot size = housing units. Red ring = ZIP 77840. Click a dot to open that ZIP.

Closest ZIP areas

ZIPMilesMedian builtPre-2000
778013.0 NW199263.0%
778023.4 N198472.2%
778036.0 NW198275.7%

Distance is between Census ZIP centres.

Storm backdrop: Brazos County

A ZIP is too small for its own hail record, so this is the county. FEMA’s National Risk Index rates Brazos County Relatively Moderate overall (88.4 of 100), Relatively Moderate for hail (89.3), Relatively High for strong wind (89.2) and Relatively High for tornado (96.7). NOAA logged 85 hail reports in the county, on 19 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 77840: Bryan, TX (5 miles), Temple, TX (69 miles), Waco, TX (81 miles).

Questions

How old are the homes in ZIP 77840?

Of the 25,423 housing units, 7,350 (28.9%) were built before 1980, 17,150 (67.5%) before 2000 and 4,432 (17.4%) from 2010 on (Census ACS 2019 to 2023, survey estimate).

Does a house's age tell me how old its roof is in 77840?

No. ACS records the year the structure was built, not the year the roof was last replaced. With 7,350 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, 77803 (6.0 miles NW) has the largest share built before 2000, 75.7%, against 67.5% in 77840.

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.