Katy is a city located in the U.S. state of Texas within the Houston–Sugar Land–Baytown metropolitan area. The city is located partially in the counties of Fort Bend, Waller, and Harris. As of the 2000 U.S. Census, Katy's population was 11,775.

Overview
Katy is located at 29°47′33″N, 95°49′21″W (29.792582, -95.822436).
According to the United States Census Bureau, the city has a total area of 27.6 km² (10.7 mi²). None of the area is covered with water.

Geography
Katy residents often split the city into two informal sections: "Old Katy" (or Katy Proper) and "Katy Area". Old Katy is the actual city limits of Katy and lies mostly north of Interstate 10. This is the original Katy from before the 1970s when Houston's Energy Corridor (and the development that came with it) made its way west on I-10.
The "Katy area" is made up of large sections of unincorporated Harris and Fort Bend counties and mostly sits east and southeast of the city limits of Katy. This area is within the Katy Independent School District and nearly everyone in this area has a Katy postal address.
The Katy area includes new upscale developments and master planned communities such as Cinco Ranch, Wood Creek Reserve, Grayson Lakes, Seven Meadows, Firethorne and Grand Lakes, while also encompassing developments from the 1970s and 1980s such as Memorial Parkway, Kelliwood and Nottingham Country.
All of the "Katy area" lies in the city of Houston's extraterritorial jurisdiction (ETJ), not Katy's ETJ. This means that the areas of "Katy area" are controlled by the city of Houston and the city has the ability to annex it in the future. The city of Katy cannot annex this area unless the city of Houston releases the area's ETJ to Katy, which has occurred in several small chunks in recent years. The most recent instance of this was in 2001 when Houston ceded about 400 acres (1.6 km²) of ETJ to the City of Katy to allow the Katy Mills Mall and surrounding parking lot to be built entirely within the City of Katy.

Demographics
The Katy area absorbed several thousand evacuees in the aftermath of Hurricane Katrina. No attempt has been made to get an accurate count of how many evacuees from Louisiana and Mississippi are in the region. The Katy Independent School District reported on September 7, 2005 that it received 1,161 new students in the district as a result of the hurricane. Mayor Doyle Callender in a Houston Chronicle interview on September 14, 2005 estimated there are 3,000 to 4,000 evacuees in the Katy area shelters while 500 of those are in shelters within the Katy city limits.
There are likely thousands more in permanent housing units throughout the Katy area. One of the primary reasons why Katy absorbed such a large number of Hurricane Katrina evacuees is its location on Interstate 10, the major east-west artery through the area and direct feeder route of evacuees from New Orleans and the Gulf Coast region of Mississippi. Nobody in the mandatory evacuations in the aftermath of the storm was evacuated to the Katy area initially; a small number of evacuees originally housed in the Reliant Astrodome in Houston were bussed into the Katy area several days after their arrival in the Texas Gulf Coast region.

A refuge for hurricane victims

Education

Primary and secondary schools
Pupils who live in Katy are zoned to schools in Katy Independent School District.
Three elementary schools, all in the city of Katy, serve Katy residents:
The following middle schools serve City of Katy residents:
All high school aged students in the City of Katy are zoned to Katy High School
Many homes in unincorporated Fort Bend, Harris, or Waller counties which have Katy addresses are served by other schools in Katy ISD.

Zelma Hutsell Elementary School
Katy Elementary School
WoodCreek Elementary School
Katy Junior High School
Beckendorff Junior High School (in unincorporated Fort Bend County) Public schools
Katy is served by the Houston Community College System.

Colleges and universities
Katy is served by the Katy Branch of Harris County Public Library.

Public libraries
The Katy Ruff Riders of the Intense Football League play at the Katy ISD's Leonard E. Merrell Center.
The Katy Tigers of Katy High School have won 4 state football titles (1959, 1997, 2000, 2003) and are widely supported by the local community.

Sports
The Katy Family YMCA is located in nearby Cinco Ranch in unincorporated Fort Bend County. The YMCA was formerly named after Ken Lay, due to his having given an endowment of over $1 million. Soon after the Enron scandal began, the YMCA, since removing the name was undoable due to the financial help Lay provided, reduced the name, "Ken Lay" to approximately one-fourth the size it was before. In June 2006 Lay asked for his money to be returned in the wake of his legal trouble surrounding the Enron Scandal; consequently his name was removed and the YMCA was renamed the Katy Family YMCA.
Retail centers are springing up all throughout Katy to accommodate the rapid residential growth. The major retail growth is now being focused on the fast growing Katy Fort Bend Rd. near the east entrance to the Katy Mills shopping mall.

Postal service
This list includes people both from the City of Katy as well as the Greater Katy area:

Renée Zellweger, Academy Award winning movie actress (Jerry Maguire, Bridget Jones's Diary among others)
Renée O'Connor, TV actress (Xena: Warrior Princess)
Clint Black, country music superstar in the 1990s
Roger Clemens, baseball pitcher and seven time Cy Young Award winner. Lived in Katy for a short time.
Frank Bielec, designer on hit TV show Trading Spaces
Kimberly Caldwell, finalist on American Idol (Season 2)
Janeane Garofalo, movie actress and radio host on Air America network in addition to stand up comic. Spent high school years in Katy.
Pamela Ribon, author who spent high school years in Katy.
Yao Ming, basketball superstar for the Houston Rockets. Has made the Katy area his home while in the United States, although he has an off-season home in Daly City, California.
Eric Heitmann, football player for the San Francisco 49ers
Jake Voskuhl, NBA center for the Charlotte Bobcats
Katy Taylor, Olympian figure-skater
Billy Bob Thornton, actor. Lived in Katy for a brief period.
The members of the band King's X, who reside in Katy. Ty Tabor (member) has a studio in Katy.
Shawn Daivari, WWE RAW Wrestler who resides in Katy.