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Greene County, Ohio — public water systems

At a glance

46 active public water systems are filed under Greene County, Ohio in EPA's SDWIS records, together reporting 102,782 people served. The largest is Fairborn Public Water System, which reports serving 34,620 people. 10 are community water systems serving people where they live; the other 36 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

46

Population served

102.8K

Community systems

10

Groundwater share

100%

How does Greene County compare with other Ohio counties?

Greene County has the 28th-most active public water systems among the 133 counties listed for active Ohio systems in EPA records; among the 92 with 3 or more systems, the median has 29. Its systems report 102,782 people served in total, the 19th-largest county figure in the state and 1% of the statewide total. The average system here reports serving 2,234 people, about 19% below the Ohio average of 2,767. 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 Greene County's drinking water come from?

By primary water source, Greene County's active systems draw on groundwater (42, 91%) and purchased groundwater (4, 8.7%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 7.6% across Ohio. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Fairborn Public Water System, draws primarily on groundwater.

What kinds of water systems operate in Greene County?

Greene County's active systems break down as 10 community systems (22%), 6 non-transient non-community systems (13%) and 30 transient non-community systems (65%). 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 (74%), local government (13%), state government (8.7%) and federal government (4.3%).

Water systems in Greene County

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Active public water systems in Greene County, Ohio
#Water systemCountyPopulation servedTypeSource
1Fairborn Public Water SystemGreene34,620CommunityGroundwater
2Xenia City PwsGreene29,000CommunityGroundwater
3Bellbrook Water WorksGreene9,475CommunityGroundwater
4Wright State UniversityGreene8,948CommunityGroundwater
5Cedarville UniversityGreene4,000CommunityGroundwater
6Yellow Springs Village PwsGreene3,761CommunityGroundwater
7Wright Patterson Medical Center PwsGreene2,401Non-transient non-communityPurchased groundwater
8Jamestown Village PwsGreene1,997CommunityGroundwater
9Sports PlexGreene1,502Transient non-communityGroundwater
10Kettering Health Soin Medical CenterGreene1,035Non-transient non-communityPurchased groundwater
11Wright Field Child Development CenterGreene888Non-transient non-communityPurchased groundwater
12Spring Valley VillageGreene538CommunityGroundwater
13Bowersville Village PwsGreene360CommunityGroundwater
14Spring Valley Estates MHPGreene360CommunityGroundwater
15Xenia Dragway Operations LLCGreene350Transient non-communityGroundwater
16Shawnee Hills Baptist ChurchGreene304Transient non-communityGroundwater
17Woodhaven Swim and Tennis Club, Inc.Greene250Transient non-communityGroundwater
18Greene Valley RecreationGreene240Transient non-communityGroundwater
19Kettering Health Greene MemorialGreene211Non-transient non-communityPurchased groundwater
20Liberty Worship Center Church of GodGreene190Transient non-communityGroundwater
21Grace Covenant ChurchGreene180Transient non-communityGroundwater
224-H Camp Clifton, Inc..Greene152Transient non-communityGroundwater
23Clifton Mills, Inc..Greene150Transient non-communityGroundwater
24Jasper Road Food MartGreene150Transient non-communityGroundwater
25Huffman Metropark Momba Well PwsGreene145Transient non-communityGroundwater
26Odnr-Spring Valley Shooting RangeGreene140Transient non-communityGroundwater
27Clifton Gorge Exploration CenterGreene138Transient non-communityGroundwater
28Jasper Hills Golf ClubGreene120Transient non-communityGroundwater
29Knollwood Garden CenterGreene120Transient non-communityGroundwater
30Mount St. JohnGreene115Non-transient non-communityGroundwater
31Grape Grove Church of ChristGreene90Transient non-communityGroundwater
32Glen Helen Outdoor Education CenterGreene87Transient non-communityGroundwater
33Waters Edge Christian ChurchGreene85Transient non-communityGroundwater
34Odnr-John Bryan State Park CampgroundGreene85Transient non-communityGroundwater
35Odnr-John Bryan State Park 2 PwsGreene75Transient non-communityGroundwater
36Knollwood TavernGreene75Transient non-communityGroundwater
37Old Us 35 CampgroundGreene60Transient non-communityGroundwater
38Church at BeavercreekGreene50Transient non-communityGroundwater
39Santa Fe LoungeGreene50Transient non-communityGroundwater
40Grace Christian CenterGreene50Transient non-communityGroundwater
41The Savory SkilletGreene50Transient non-communityGroundwater
42Beavercreek Family DentalGreene43Transient non-communityGroundwater
43Grace Baptist ChurchGreene40Transient non-communityGroundwater
44Camp Clifton Day CampGreene40Transient non-communityGroundwater
45Kiddie KingdomGreene37Non-transient non-communityGroundwater
46Fellowship Tabernacle ChurchGreene25Transient non-communityGroundwater

Greene County water systems: frequently asked questions

How many public water systems are in Greene County, Ohio?

EPA's SDWIS records file 46 active public water systems under Greene County, Ohio: 10 community systems (22%), 6 non-transient non-community systems (13%) and 30 transient non-community systems (65%).

Who supplies drinking water in Greene County, OH?

The largest community water systems filed under Greene County are Fairborn Public Water System (34,620 people served), Xenia City Pws (29,000 people served) and Bellbrook Water Works (9,475 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 Greene County's drinking water come from groundwater or surface water?

Of the 46 active public water systems in Greene County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Fairborn Public Water System, uses groundwater.

Where can I find a water quality report for Greene 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. 10 community systems are filed under Greene 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 Greene 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 Ohio 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 Greene County, Ohio”, https://aquacensus.com/water-systems/ohio/greene (data as of October 1, 2026).