PlainWater
Counties → Washington

Kitsap County, Washington

SDWIS compliance plate

Sheet WA035 · Kitsap County 221 sys · 12,667 viol · #205/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-LOW · SRC-GW · SYS-LARGE · BOOK-FULL

  • VIOL-SEVERE 94.1% flagged
  • HEALTH-LOW 8.1% health
  • RANK-TOP #205/3254
  • PHOTO-FINISH ±0.2 pp
  • PFAS-LOW 22.2% detect
  • SRC-GW GW lead 98%
  • SYS-LARGE 221 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Whitman County ( -0.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Kitsap County ranks #205 of 3,254 counties by people served, and #7 of 39 counties in Washington. See methodology · corpus placement.

Kitsap County standing, mid-flagged corpus third

Flagged-system rate 94.1% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 8.1% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 22.2% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #205 of 3,254 · #7 of 39 in Washington.

Flagged-rate neighbourhood around Kitsap County

Lowest/highest poles plus in-state counties nearest Kitsap County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Grant · lowest Whitman · near Okanogan · near Wahkiakum · highest 69.8% 93.8% 93.9% 94.1% 94.3% 94.3% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Bremerton City Of 70,913 25 Detected
West Sound Utility District #1 28,928 148 Detected
Silverdale Water Dist 16 26,634 99 Clean
North Perry Ave Water District 24,402 47 Clean
Poulsbo City Of 17,180 418 Clean
Naval Base Kitsap at Bangor 16,828 21 Clean
North Peninsula 16,449 31 Clean
Port Orchard Water Dept 15,810 119 Clean
Bainbridge Island City Of 12,486 9 Clean
Naval Base Kitsap at Bremerton 12,078 22 Clean
Manchester Water District 10,437 54 Clean
North Bainbridge Water Co 5,490 701 Clean
Vinland 4,801 28 Clean
South Bainbridge 4,414 660 -
Suquamish 4,203 9 Clean
Parkview Terrace 3,730 9 Detected
Horizons West 3,454 28 Detected
Erland Point Water Co 2,909 29 -
McCormick Woods 2,760 59 Clean
Kitsap Memorial State Pk 2,438 22 -
Jackson Park Naval Hospital 2,277 7 -
Blake Island State Park Wtr 2,260 29 -
West Kitsap 2,248 282 -
Sunnyslope 2,112 34 -
Rocky Point Water District 12 1,831 4 -
Indianola Water 1,705 9 -
Naval Base Kitsap at Keyport 1,540 23 -
Frog Pond 1,229 28 -
Keyport Water 1,202 4 -
Meadowmeer 1,157 773 -
Newberry Hill 1,143 3 -
Miller Bay 1,072 4 -
Scenic Beach State Park 1,045 33 -
Long Lake View Est 2 5 923 21 -
Island Lake 883 21 -
Mountaineers Theater - Kitsap 628 20 -
Wicks Lake Ranches 615 24 -
Seabeck 610 6 Clean
Sandy Hook Park Community Club 593 44 -
Tahuyeh Lake Community Club 560 193 -
Bloedel Reserve 559 24 -
Battle Point Park 512 34 -
Grace Bible Church 436 1 -
Miracle Ranch 418 21 -
Bucklin 402 13 -
Eldorado Hills 383 4 -
Olalla School 350 45 -
Port Gamble 303 43 -
South Kitsap Little League 293 24 -
Cedar Glen Mobile Home Park 284 19 -

Compare beyond Washington

Mid-flagged peers for Kitsap County

Cross-state counties nearest Kitsap County on flagged-system share (94.1%) and cumulative violation count (12,667). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.