Kihei beach with the West Maui Mountains in the distance
Latitude and Longitude:
|• Total||11.7 sq mi (30.2 km2)|
|• Land||9.3 sq mi (24.0 km2)|
|• Water||2.4 sq mi (6.2 km2)|
|Elevation||3 ft (1 m)|
|• Density||1,800/sq mi (690/km2)|
|Time zone||UTC-10 ( Hawaii-Aleutian)|
|GNIS feature ID||0361181|
Kihei is located at (20.759122, −156.457228).
According to the United States Census Bureau, the CDP has a total area of 11.7 square miles (30.2 km2), of which 9.3 square miles (24.0 km2) is land and 2.4 square miles (6.2 km2), or 20.44%, is water.  It is considered to be the South Side of Maui, located on the leeward side of Haleakala. The climate is arid, receiving no more than 10 inches (250 mm) of rain per year.
Although its official city designation is Wailuku, the Kihei Junction Park and Ride lot is a frequently-used commuter parking lot at the corner of highway 310 (North Kihei Road) and highway 30 (Honoapi'ilani Highway) at coordinates 20.8099479,-156.51417  There is no public bus service that stops here; however, it is located near Ma 'alaea Harbor Village, where there is a public transportation stop.  It's primarily used for hikers, bicyclists and ride sharers looking for a meeting place that is centrally located between Kihei, Lahaina and Wailuku. There's no charge to park; the lot is unattended.
As of the census  of 2000, there were 16,749 people, 6,170 households, and 3,813 families residing in the CDP. The population density was 1,648.6 people per square mile (636.5/km2). There were 9,170 housing units at an average density of 902.6 per square mile (348.5/km2). The racial makeup of the CDP was 47.76% White, 6.74% African American, 0.48% Native American, 24.72% Asian, 7.85% Pacific Islander, 1.58% from other races, and 16.87% from two or more races. Hispanic or Latino of any race were 1.52% of the population.
There were 6,170 households, out of which 32.0% had children under the age of 18 living with them, 45.7% were married couples living together, 10.6% had a female householder with no husband present, and 38.2% were non-families. 25.7% of all households were made up of individuals, and 4.0% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.31.
In the CDP the population was spread out, with 25.1% under the age of 18, 8.1% from 18 to 24, 36.2% from 25 to 44, 23.6% from 45 to 64, and 7.0% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 103.1 males. For every 100 females age 18 and over, there were 103.3 males.
The median income for a household in the CDP was $46,215, and the median income for a family was $50,738. Males had a median income of $33,229 versus $26,881 for females. The per capita income for the CDP was $21,591. About 7.0% of families and 10.1% of the population were below the poverty line, including 8.8% of those under age 18 and 5.1% of those age 65 or over.
The Kihei Aquatic Center hosts swim meets and other aquatic activities. 
The Valley Isle Road Runners host a number of running events throughout the year that include the Maui Marathon Events, Iao Valley 10k and 5k and the Na Holo Wahine 5k and 1 Mile walk for women. The running clubs also hosts a couple free to members runs that non-members are invited to join for a small fee.
Several research facilities are located in Kihei, including the main offices for the Hawaiian Islands Humpback Whale National Marine Sanctuary,  seed operations by DEKALB Genetics Corporation and Monsanto Company,  and the Maui Research and Technology Park, which is home to the Maui High Performance Computing Center (MHPCC), and the Pacific Disaster Center  and is overseen by the Air Force Maui Optical and Supercomputing observatory (AMOS).
Major employers in Kihei include Safeway, Monsanto, the Hawai'i Department of Education, the Kihei Canoe Club, Keller Williams Realty Maui, Goodfellow Bros., Fred's Mexican Cafe, and NextHome Pacific Properties. 
- "American FactFinder - Community Facts". United States Census Breau. May 6, 2019. Archived from the original on February 13, 2020.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Geographic Identifiers: 2010 Demographic Profile Data (G001): Kihei CDP, Hawaii". United States Census Bureau. Retrieved December 28, 2011.
- "Kihei Junction Park and Ride--Google Maps". Google Maps. Retrieved 2 January 2018.
- "Route Maps, Trip Planner, Bus Tracker | Maui County, HI- Official Website". Retrieved 2 January 2018.
- "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
- "Kihei Aquatic Center". mauicounty.gov. Retrieved 2019-04-10.
- "NOAA Breaks Ground on New Facility at Hawaiian Islands Humpback Whale National Marine Sanctuary Office in Kihei". www.publicaffairs.noaa.gov. Archived from the original on 2013-02-25. Retrieved 2008-04-06.
- Monsanto - Hawaii > Farm Stations Archived 2009-04-03 at the Wayback Machine
- "Maui Research and Technology Park Tenants".]
- Search Results - Kihei, Hawaii - ReferenceUSA Current Businesses
- Bolch, Ben (April 9, 2019). "From Southern California to Final Four, Virginia's Kihei Clark stands tall". Los Angeles Times. Retrieved April 9, 2019.