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Counties → Pennsylvania

York County, Pennsylvania

SDWIS compliance plate

Sheet PA133 · York County 208 sys · 25,528 viol · #185/3254

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

  • VIOL-SEVERE 96.2% flagged
  • HEALTH-LOW 6.1% health
  • RANK-TOP #185/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 66.7% detect
  • SRC-GW GW lead 93%
  • SYS-LARGE 208 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Centre County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, York County ranks #185 of 3,254 counties by people served, and #6 of 68 counties in Pennsylvania. See methodology · corpus placement.

York County standing, mid-flagged corpus third

Flagged-system rate 96.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 6.1% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 66.7% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #185 of 3,254 · #6 of 68 in Pennsylvania.

Flagged-rate neighbourhood around York County

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

0% 20% 40% 60% 80% 100% Greene · lowest Centre · near Lehigh · near Sullivan · highest 66.7% 96.2% 96.2% 96.5% 96.5% 96.5% 100%

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

Water Systems

System Name Population Violations PFAS
York Water Co 206,762 30 Clean
Hanover Muni Water Works 40,900 251 Detected
Dover Twp Water Sys 21,097 1,446 Detected
Red Lion Municipal Authority 15,882 325 Clean
Dallastown Yoe Water Auth 12,300 116 Clean
West Manchester Twp Auth 9,960 1,200 Detected
Dillsburg Area Authority 8,506 194 Detected
Veolia Newberry System 6,480 3 Detected
Stewartstown Boro Water Auth 5,206 575 Detected
Shrewsbury Borough 4,727 754 Detected
New Freedom Boro Water Auth 4,464 143 Detected
Wrightsville Boro Muni Auth 4,076 194 Clean
Ski Roundtop Inc 2,500 75 -
Southern York Co Sch Dist 2,312 56 -
Glen Rock Water Auth 2,000 266 -
Dover Boro Water Sys 1,900 596 -
Peach Bottom Power Sta 1,500 118 -
Delta Boro Water Sys 1,400 150 -
Windsor Boro Water Auth 1,332 45 -
George Spangler Farmstead 1,000 20 -
Rutters Store 59 1,000 34 -
Gifford Pinchot St Park 1,000 333 -
Rutters Farm Store #24 1,000 16 -
Royal Farms Store #147 900 0 -
Kennard Dale High School 800 243 -
Wolfes Diner 800 132 -
Franklintown Boro Muni Auth 705 205 -
Royal Farms Store 214 700 82 -
Camp Tuckahoe 650 26 -
Friendship Elem Sch 625 92 -
Immaculate Heart of Mary 600 11 -
Gamlers Boatyard Campground 600 29 -
Rutters Farm Store 44 500 31 -
Porters Comm Fire Co 500 35 -
Goldsboro Boro Water Co 475 319 -
Pleasant View Church 450 37 -
Clearview Elementary School 431 114 -
South Eastern Middle Sch 420 418 -
Southeastern Intermediate Sch 420 395 -
Walmar Manor MHP 400 392 -
Celebration Community Church 400 55 -
C S Convenience Store 400 71 -
Wendys Restaurant 400 39 -
Monaghan Fire Co 400 8 -
Haars Auction Restaurant 400 58 -
York Haven Newberry Elem Sch 350 19 -
Cliff View MHP 330 740 -
Penn Grove Retreat 326 287 -
N Hopewell Winterstown Elem 322 286 -
Fawn Area Elem Sch 320 465 -

Compare beyond Pennsylvania

Mid-flagged peers for York County

Cross-state counties nearest York County on flagged-system share (96.2%) and cumulative violation count (25,528). 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.