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Kodiak Island Borough County, Alaska — public water systems

At a glance

15 active public water systems are filed under Kodiak Island Borough County, Alaska in EPA's SDWIS records, together reporting 14,105 people served. The largest is Kodiak Water System, which reports serving 9,547 people. 8 are community water systems serving people where they live; the other 7 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

15

Population served

14.1K

Community systems

8

Groundwater share

33.3%

How does Kodiak Island Borough County compare with other Alaska counties?

Kodiak Island Borough County has the 16th-most active public water systems among the 25 counties listed for active Alaska systems in EPA records; among the 24 with 3 or more systems, the median has 23. Its systems report 14,105 people served in total, the 10th-largest county figure in the state and 1.6% of the statewide total. The average system here reports serving 940 people, about 44% above the Alaska average of 653. 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 Kodiak Island Borough County's drinking water come from?

By primary water source, Kodiak Island Borough County's active systems draw on surface water (9, 60%), groundwater (5, 33%) and purchased surface water (1, 6.7%). Overall, 33% rely mainly on groundwater (including purchased groundwater) and 67% on surface water, compared with 84% and 16% across Alaska. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. The county's largest system, Kodiak Water System, draws primarily on surface water.

What kinds of water systems operate in Kodiak Island Borough County?

Kodiak Island Borough County's active systems break down as 8 community systems (53%), 1 non-transient non-community systems (6.7%) and 6 transient non-community systems (40%). 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 Native American (40%), private (33%), local government (13%) and federal government (13%).

Water systems in Kodiak Island Borough County

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Active public water systems in Kodiak Island Borough County, Alaska
#Water systemCountyPopulation servedTypeSource
1Kodiak Water SystemKodiak Island Borough9,547CommunitySurface water
2Uscg Station KodiakKodiak Island Borough3,092CommunitySurface water
3Larsen Bay Water SystemKodiak Island Borough271CommunitySurface water
4Old HarborKodiak Island Borough246CommunitySurface water
5Port LionsKodiak Island Borough175CommunitySurface water
6Bells FlatsKodiak Island Borough150Transient non-communityGroundwater
7Ouzinkie Water SystemKodiak Island Borough144CommunitySurface water
8AkhiokKodiak Island Borough90CommunitySurface water
9Olds River InnKodiak Island Borough85Transient non-communityGroundwater
10Karluk Water SystemKodiak Island Borough60CommunitySurface water
11Uscg Bear Valley Golf CourseKodiak Island Borough59Transient non-communityGroundwater
12RendezvousKodiak Island Borough56Transient non-communityGroundwater
13Vfw Kodiak Post #7056Kodiak Island Borough46Transient non-communityPurchased surface water
14Southeast Alaska LoggingKodiak Island Borough45Non-transient non-communitySurface water
15Java Flats/Russian River RoadhouseKodiak Island Borough39Transient non-communityGroundwater

Kodiak Island Borough County water systems: frequently asked questions

How many public water systems are in Kodiak Island Borough County, Alaska?

EPA's SDWIS records file 15 active public water systems under Kodiak Island Borough County, Alaska: 8 community systems (53%), 1 non-transient non-community systems (6.7%) and 6 transient non-community systems (40%).

Who supplies drinking water in Kodiak Island Borough County, AK?

The largest community water systems filed under Kodiak Island Borough County are Kodiak Water System (9,547 people served), Uscg Station Kodiak (3,092 people served) and Larsen Bay Water System (271 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 Kodiak Island Borough County's drinking water come from groundwater or surface water?

Of the 15 active public water systems in Kodiak Island Borough County, 33% draw mainly on groundwater and 67% on surface water, counting purchased supplies. The largest system, Kodiak Water System, uses surface water.

Where can I find a water quality report for Kodiak Island Borough 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. 8 community systems are filed under Kodiak Island Borough 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 Kodiak Island Borough 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 Alaska 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 Kodiak Island Borough County, Alaska”, https://aquacensus.com/water-systems/alaska/kodiak-island-borough (data as of October 1, 2026).