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Counties → Indiana

Allen County, Indiana

SDWIS compliance plate

Sheet IN003 · Allen County 91 sys · 5,221 viol · #216/3254

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

  • VIOL-SEVERE 89.0% flagged
  • HEALTH-LOW 8.6% health
  • RANK-TOP #216/3254
  • PHOTO-FINISH ±1.0 pp
  • PFAS-HIGH 66.7% detect
  • SRC-GW GW lead 95%
  • SYS-MID 91 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Warrick County (+ 1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Allen County ranks #216 of 3,254 counties by people served, and #3 of 92 counties in Indiana. See methodology · corpus placement.

Allen County standing, lower-flagged corpus third

Flagged-system rate 89.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 8.6% 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 #216 of 3,254 · #3 of 92 in Indiana.

Flagged-rate neighbourhood around Allen County

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

0% 20% 40% 60% 80% 100% Hendricks · lowest Allen · this county Whitley · near Union · highest 84.9% 88% 89% 90% 90% 90.4% 100%

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

Water Systems

System Name Population Violations PFAS
Fort Wayne - 3 Rivers Filtration Plant 269,994 37 Detected
New Haven Water Department 15,700 46 Detected
Huntertown Water Works 14,058 45 Clean
Pioneer Water L.L.C. 2,076 132 -
Bf Goodrich Tire Manufacturing 1,750 24 -
Maysville Region. Water & Sewer District 1,634 65 -
Woodburn Water Works 1,609 328 -
Monroeville Water Works 1,400 87 -
Leo High School 1,395 31 -
Heritage School K-12 1,350 0 -
County Line Ch of God-Auditorium/School 1,168 33 -
Grabill Water Works 1,163 63 -
Cedarville Park 1,000 67 -
Mjt Holdings LLC 940 6 -
Sunnymede Community Association Water 473 54 -
St. Joseph Hessen Cassel Catholic School 416 460 -
St. Patricks Church of Arcola 404 7 -
Country Court Estates 362 47 -
Crossbridge Community Church 300 9 -
Cedar Creek Church of Christ DC 300 114 -
Arcola School 270 17 -
All American Stores #4-Fort Wayne(dagco) 262 31 -
St. Johns Lutheran 252 35 -
St. Paul Lutheran Church 221 18 -
All American Stores #5, Tiny Town Market 218 27 -
Cornerstone Community Church 203 73 -
Metea Park 202 35 -
Emmanuel Lutheran Church/Elem. & Daycare 183 128 -
St. Louis Catholic Church & School 170 376 -
Springfield Center Amish School 170 51 -
Campbell Amish School 160 26 -
Mill Road Estates 150 276 -
Republic Services of Indiana, LP 135 17 -
Leo United Methodist Church & Daycare 134 5 -
Colonial Golf Course 134 89 -
St. Mark Lutheran Church 127 28 -
Black Creek Amish School 125 34 -
Three Rivers Wesleyan Church 120 3 -
Grayfox Public Water Supply 118 58 -
North Park Community Church - Bldgs 2 -5 115 0 -
North Park Community Church - Worship 115 0 -
Milan Center Amish School 108 30 -
St. John Lutheran Church & School 107 46 -
Pond-A-River Golf Course 106 160 -
Dollar General - Zanesville 105 0 -
Oak Park Church 100 12 -
St. Aloysius Catholic School 100 126 -
Fox Island Nature Center 100 51 -
Graber Box and Pallet 93 3 -
Arise Church 90 27 -

Compare beyond Indiana

Lower-flagged peers for Allen County

Cross-state counties nearest Allen County on flagged-system share (89.0%) and cumulative violation count (5,221). 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.