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Kings County, California — public water systems

At a glance

43 active public water systems are filed under Kings County, California in EPA's SDWIS records, together reporting 155,929 people served. The largest is City of Hanford, which reports serving 62,127 people. 13 are community water systems serving people where they live; the other 30 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

43

Population served

155.9K

Community systems

13

Groundwater share

88.4%

How does Kings County compare with other California counties?

Kings County has the 48th-most active public water systems among the 201 counties listed for active California systems in EPA records; among the 72 with 3 or more systems, the median has 73. Its systems report 155,929 people served in total, the 34th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 3,626 people, about 36% below the California average of 5,706. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Kings County's drinking water come from?

By primary water source, Kings County's active systems draw on groundwater (38, 88%) and surface water (5, 12%). Overall, 88% rely mainly on groundwater (including purchased groundwater) and 12% on surface water, compared with 85% and 15% across California. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, City of Hanford, draws primarily on groundwater.

What kinds of water systems operate in Kings County?

Kings County's active systems break down as 13 community systems (30%), 12 non-transient non-community systems (28%) and 18 transient non-community systems (42%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (63%), local government (35%) and federal government (2.3%).

Water systems in Kings County

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Active public water systems in Kings County, California
#Water systemCountyPopulation servedTypeSource
1Hanford, City ofKings62,127CommunityGroundwater
2Lemoore, City ofKings27,185CommunityGroundwater
3Corcoran, City ofKings22,808CommunityGroundwater
4Lemoore Naval Air StationKings15,000CommunitySurface water
5Avenal, City ofKings13,696CommunitySurface water
6Armona Community Services DistKings4,143CommunityGroundwater
7Home Garden CsdKings1,750CommunityGroundwater
8Stratford PUDKings1,277CommunityGroundwater
9Kettleman City CsdKings1,242CommunitySurface water
10Kings River Hardwick SchoolKings908Non-transient non-communityGroundwater
11Central Valley Meat Co Inc.Kings812Non-transient non-communityGroundwater
12Pioneer Elementary SchoolKings750Non-transient non-communityGroundwater
13Wsl - Surf RanchKings535Transient non-communityGroundwater
14Island Union SchoolKings416Non-transient non-communityGroundwater
15Sunset Vista Estates MHPKings400CommunityGroundwater
16Lakeside Elementary SchoolKings388Non-transient non-communityGroundwater
17Nichols FarmsKings375Non-transient non-communityGroundwater
18Hanford First Baptist ChurchKings350Transient non-communityGroundwater
19A & M Livestock AuctionKings200Transient non-communityGroundwater
20Hanford Christian SchoolKings175Non-transient non-communityGroundwater
21Keenan Farms Inc..Kings174Non-transient non-communitySurface water
22Warmerdam Packing LLCKings150Transient non-communityGroundwater
23Burris ParkKings126Transient non-communityGroundwater
24Hickey ParkKings104Transient non-communityGroundwater
25Homegrown Cold StorageKings100Transient non-communityGroundwater
26Morning Star King, LLCKings80Non-transient non-communityGroundwater
27Azcal Management CoKings73CommunitySurface water
28Hardwick Water CompanyKings69CommunityGroundwater
29Westside Harvesting, LLCKings53Non-transient non-communityGroundwater
30Netto Ag Inc..Kings50Non-transient non-communityGroundwater
3115th AvenueKings50CommunityGroundwater
32Kings Country ClubKings50Transient non-communityGroundwater
33Baker Commodities Inc..Kings47Non-transient non-communityGroundwater
34Kings Rest MotelKings30Transient non-communityGroundwater
35Cesar Arevalo RentalsKings30Transient non-communityGroundwater
36Grangeville MarketKings30Transient non-communityGroundwater
37Farmers Mini MartKings26Transient non-communityGroundwater
38Overland StockyardKings25Transient non-communityGroundwater
39Kingston-Laton ParkKings25Transient non-communityGroundwater
40Gill'S Truck StopKings25Transient non-communityGroundwater
41La Fuente Market Ii(Wa)Kings25Transient non-communityGroundwater
42Westside LockersKings25Transient non-communityGroundwater
43Kwik Break Deli MartKings25Transient non-communityGroundwater

Kings County water systems: frequently asked questions

How many public water systems are in Kings County, California?

EPA's SDWIS records file 43 active public water systems under Kings County, California: 13 community systems (30%), 12 non-transient non-community systems (28%) and 18 transient non-community systems (42%).

Who supplies drinking water in Kings County, CA?

The largest community water systems filed under Kings County are City of Hanford (62,127 people served), City of Lemoore (27,185 people served) and City of Corcoran (22,808 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Kings County's drinking water come from groundwater or surface water?

Of the 43 active public water systems in Kings County, 88% draw mainly on groundwater and 12% on surface water, counting purchased supplies. The largest system, City of Hanford, uses groundwater.

Where can I find a water quality report for Kings County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 13 community systems are filed under Kings County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Kings County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More California water systems

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Public water systems in Kings County, California”, https://aquacensus.com/water-systems/california/kings (data as of October 1, 2026).