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Counties → Maryland

Caroline County, Maryland

SDWIS compliance plate

Sheet MD011 · Caroline County 64 sys · 2,080 viol · #1773/3254

VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 71.9% flagged
  • HEALTH-MID 23.5% health
  • RANK-MID #1773/3254
  • PHOTO-FINISH ±0.5 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-MID 64 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Frederick County ( -0.5 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Caroline County ranks #1,773 of 3,254 counties by people served, and #23 of 24 counties in Maryland. See methodology · corpus placement.

Caroline County standing, lower-flagged corpus third

Flagged-system rate 71.9% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 23.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,773 of 3,254 · #23 of 24 in Maryland.

Flagged-rate neighbourhood around Caroline County

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

0% 20% 40% 60% 80% 100% Baltimore city · lowest Caroline · this county Queen Anne's · near Kent · highest 38.5% 71.4% 71.9% 72.7% 77% 77.3% 96.6%

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

Water Systems

System Name Population Violations PFAS
Town of Denton 4,500 9 Clean
Town of Federalsburg 2,450 9 -
Town of Greensboro 1,878 37 -
Town of Ridgely 1,600 24 -
Royal Farms #135 1,178 0 -
North Caroline High School 1,028 10 -
Colonel Richardson Mid & High School 1,022 28 -
Town of Preston 750 43 -
U5 Foods - Bethlehem 604 14 -
Choptank Community Health 505 0 -
American Legion Post #29 483 2 -
Tuckahoe St Park (Lake) 400 0 -
Caroline Acres Mobile Home Park 395 53 -
Benedictine School 300 79 -
Cedar Mobile Home Park 300 348 -
Town of Henderson 156 75 -
Jonestown Water System 150 174 -
Camp Todd Girl Scouts(main Camp) 132 0 -
Martinak State Park 130 0 -
Tuckahoe State Park (Tower) 110 0 -
Pizza Empire 105 6 -
Dover Bridge Park 100 77 -
Tri-Gas and Oil Co., Inc. 90 97 -
Choptank Electric Cooperative, Inc. 80 7 -
Lineage Logistics 75 13 -
Nelpine Mobile Home Park 70 26 -
M.r.d.c. Head Start 61 59 -
U-5 Foods- Smithville 52 5 -
Camp Mardela Main Camp 51 2 -
Meadowbrook Court 50 123 -
Goldsboro Fire Company 50 0 -
Holly Cove Harbor Mobile Home Park 45 257 -
Liberty Mobile Home Park 40 89 -
Tower Court Mobile Home Park 40 143 -
Burrsville Ruritan Club 38 3 -
Harman Subdivision 35 61 -
Nielsen Mobile Home Park [Marsh Creek] 35 57 -
Adkins Arboretum 32 0 -
Schraders Bridgetown Manor 31 0 -
Choptank Transport Inc. 30 2 -
Camp Mardela Pavillion 30 1 -
Holiday Park Pool 29 1 -
Cohees 404 Restaurant and Lounge 29 2 -
Holiday Park Site 100S 29 0 -
Holiday Park 200S 29 0 -
Holiday Park 300S 29 9 -
Wayne Quidas Mlc Bell Creek 29 1 -
Clayton Farms 29 0 -
VFW Post 5246 28 5 -
Walkers Market Store 28 4 -

Compare beyond Maryland

Lower-flagged peers for Caroline County

Cross-state counties nearest Caroline County on flagged-system share (71.9%) and cumulative violation count (2,080). 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.