What County Is Katy, Texas In?
Katy is split between Harris County (about 53% of its residents), Fort Bend County (26%), and Waller County (21%). Check a specific address near a county line. About 25,184 people live there (2020–2024 estimate). It uses Central Time and covers 15.3 sq mi (39.6 km²) of land. The nearest city or town of 50,000 people or more is Sugar Land, 18 mi southeast.
- Population, 2020–2024 estimate
- 25,184 ± 39
- Land area
- 15.3 sq mi (39.6 km²)
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Sun today
- Sunrise and sunset for the year
- Elevation
- 142 ft 43 m, ground height at the central point
- Median household income
- $114,912 ± $16,083
- Median home value
- $401,700 ± $23,224
- Median rent, with utilities
- $1,602 ± $210
- Homes lived in by their owners
- 80.7% ± 3.3 points
- Water area
- 0.02 sq mi (0.05 km²)
- State
- Texas
- Census place code
- 4838476
- Coordinates (central point)
- 29.790915, -95.840711
These coordinates mark a central point for the area, not a street address. Population, income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
County boundaries in Katy
- Harris County, Texas13,410 residents · 53%
- Fort Bend County, Texas6,440 residents · 26%
- Waller County, Texas5,334 residents · 21%
This place crosses county lines: residents by county are American Community Survey 2020–2024 estimates. A city name alone cannot identify the county for every address. It is one of the 943 cities and towns with residents in more than one county. Check a point on the county map.
Coordinates of Katy
29.790915, -95.840711 is a central point for Katy, not a street address. Convert these coordinates or share a map link.
Elevation in Katy
142 ft (43 m), the USGS ground height at Katy’s central point (3DEP terrain, 1 m grid, NAVD 88). Ground height varies across town. Check elevation at another spot.
Sunrise and sunset in Katy
- Longest day
- 14 hours 4 minutes around June 21
- Shortest day
- 10 hours 14 minutes around December 21
- Earliest sunrise
- 6:22 AM around June 11
- Latest sunrise
- 7:40 AM the day before clocks go back in November
- Earliest sunset
- 5:23 PM around December 2
- Latest sunset
- 8:28 PM around June 30
Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.
| Day | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Jan 15 | 7:19 AM | 5:46 PM | 10 h 27 min |
| Feb 15 | 7:03 AM | 6:12 PM | 11 h 9 min |
| Mar 15 | 7:33 AM | 7:31 PM | 11 h 58 min |
| Apr 15 | 6:56 AM | 7:50 PM | 12 h 54 min |
| May 15 | 6:30 AM | 8:09 PM | 13 h 39 min |
| Jun 15 | 6:22 AM | 8:25 PM | 14 h 3 min |
| Jul 15 | 6:32 AM | 8:25 PM | 13 h 53 min |
| Aug 15 | 6:51 AM | 8:04 PM | 13 h 13 min |
| Sep 15 | 7:07 AM | 7:28 PM | 12 h 21 min |
| Oct 15 | 7:25 AM | 6:52 PM | 11 h 27 min |
| Nov 15 | 6:47 AM | 5:27 PM | 10 h 40 min |
| Dec 15 | 7:11 AM | 5:25 PM | 10 h 14 min |
Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.
Time zones in Katy
Katy uses Central Time (America/Chicago).
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
3 ZIP Code areas overlap Katy. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Bordering areas, nearest first
Distances are straight lines between map points.
- Brookshire, Texas (city)6.7 mi west
- Houston, Texas (city)27 mi east
Before using this answer on a form
A city boundary, a CDP and a mailing city can mean different things.
Find the county where you are now, check its ZIP area, or check the time zone where you are.