Kingwood
Plumbing in Kingwood, TX
Kingwood was built mostly in two decades, and nearly half its homes date from the 1970s and 1980s, which makes it the place with the oldest pipe under the slab of the eight.
In short
- Harris County
- 66,044 people, 65.3% owner-occupied
- Median year built 1990
- 47.9% built in the 1970s and 1980s
The Numbers
Kingwood had 66,044 residents in the 2019–2023 estimates, a median household income of $117,422 and 65.3% owner-occupied homes, the lowest owner share of the eight. By age, 19.5% of homes date from the 1970s and 28.4% from the 1980s, 18.6% from the 1990s and 15.6% from the 2000s, with only 1.6% since 2020.
About a third of households rent, so some calls come from landlords with houses of that age.
Source: U.S. Census Bureau, 2019–2023 American Community Survey 5-year estimates, as published by Point2Homes, read November 2, 2026
Why the Age Matters Under the Slab
The drain lines under a 1970s or 1980s slab are the oldest in the area, and the camera is how you learn what they are made of and whether a joint has shifted. Supply lines under the slab are the other age-related risk; the slab leak page starts with the meter check you can do yourself.
Large trees are part of the neighborhood's character and part of the drain story, since roots find a cracked joint.
Septic Here Is Rare
Kingwood is a planned community, much of it inside the City of Houston, and septic is not the usual case. If a property is on one, how to tell and the Harris County permit rules apply; the more common call is a drain or sewer line or a water heater.
An older Kingwood house with a slow drain?
Call. The pro brings the camera and tells you what the pipe is.