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Counties → Minnesota

Hennepin County, Minnesota

SDWIS compliance plate

Sheet MN053 · Hennepin County 202 sys · 1,534 viol · #40/3254

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

  • VIOL-SEVERE 61.4% flagged
  • HEALTH-HIGH 64.9% health
  • RANK-TOP #40/3254
  • PHOTO-FINISH ±0.5 pp
  • PFAS-HIGH 80.0% detect
  • SRC-GW GW lead 98%
  • SYS-LARGE 202 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Swift County (+ 0.5 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Hennepin County ranks #40 of 3,254 counties by people served, and #1 of 87 counties in Minnesota. See methodology · corpus placement.

Hennepin County standing, lower-flagged corpus third

Flagged-system rate 61.4% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 64.9% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 80.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #40 of 3,254 · #1 of 87 in Minnesota.

Flagged-rate neighbourhood around Hennepin County

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

0% 20% 40% 60% 80% 100% Mahnomen · lowest Stearns · near Hennepin · this county Watonwan · highest 22.2% 60.6% 60.7% 60.7% 61.4% 61.9% 100%

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

Water Systems

System Name Population Violations PFAS
Minneapolis 425,300 8 Detected
Bloomington 91,300 15 Detected
Brooklyn Park 89,995 21 Detected
Plymouth 81,026 3 Detected
Maple Grove 75,000 1 Detected
Eden Prairie 63,726 8 Detected
Minnetonka 54,474 0 Detected
Edina 53,494 4 Detected
Saint Louis Park 50,010 14 Detected
Richfield 36,899 3 Detected
Brooklyn Center 33,782 0 Detected
Champlin 24,007 6 Clean
Golden Valley 23,000 4 Detected
Crystal 22,937 3 Detected
New Hope 20,963 6 Detected
Hopkins 19,462 6 Detected
Robbinsdale 14,646 0 Detected
Rogers 14,430 4 Detected
Saint Anthony Village 9,500 0 Detected
Mound 9,447 33 Clean
Minnetrista 5,888 22 Clean
Dayton 4,930 6 -
Wayzata 4,592 4 Detected
Medina 4,205 33 Clean
Shorewood 3,890 8 Detected
Orono 3,062 5 -
Corcoran 2,964 0 -
Osseo 2,650 32 -
Excelsior 2,483 2 -
Saint Bonifacius 2,374 6 -
Maple Plain 2,174 14 -
Spring Park 1,743 13 -
Long Lake 1,729 29 -
Tonka Bay 1,442 6 -
Riverview Apartment Partnership 700 21 -
Mpls. Ind. Apostolic Lutheran Chur 700 0 -
Loretto 637 1 -
General Mills Operations, Inc.- JFBTC 600 0 -
Minnetonka Beach 547 6 -
Sun Valley Mobile Home Park 500 8 -
TRPD-Elm Creek Park, Hayden Lake Group 500 0 -
TRPD-Elm Creek Park, Rush Creek Group 500 0 -
TRPD-Elm Creek Park, Creative Play Are 500 0 -
Rush Creek Golf Academy 500 0 -
Maple Hill Estates 490 6 -
YMCA Camp Christmas Tree #1018 350 3 -
Danfoss Power Solutions II LLC 320 0 -
Greenfield 313 16 Clean
Lyndale Lutheran Church 300 21 -
Grace Fellowship Church 300 0 -

Compare beyond Minnesota

Lower-flagged peers for Hennepin County

Cross-state counties nearest Hennepin County on flagged-system share (61.4%) and cumulative violation count (1,534). 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.