Lehigh County, Pennsylvania — public water systems
At a glance
197 active public water systems are filed under Lehigh County, Pennsylvania in EPA's SDWIS records, together reporting 292,806 people served. The largest is Lca Allentown Division, which reports serving 118,000 people. 40 are community water systems serving people where they live; the other 157 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
197
Population served
292.8K
Community systems
40
Groundwater share
94.4%
How does Lehigh County compare with other Pennsylvania counties?
Lehigh County has the 11th-most active public water systems among the 99 counties listed for active Pennsylvania systems in EPA records; among the 71 with 3 or more systems, the median has 76. Its systems report 292,806 people served in total, the 12th-largest county figure in the state and 2.3% of the statewide total. The average system here reports serving 1,486 people, about 15% below the Pennsylvania average of 1,741. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Lehigh County's drinking water come from?
By primary water source, Lehigh County's active systems draw on groundwater (185, 94%), purchased surface water (9, 4.6%), surface water (2, 1%) and purchased groundwater (1, 0.5%). Overall, 94% rely mainly on groundwater (including purchased groundwater) and 5.6% on surface water, compared with 93% and 6.8% across Pennsylvania. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Lca Allentown Division, draws primarily on surface water.
What kinds of water systems operate in Lehigh County?
Lehigh County's active systems break down as 40 community systems (20%), 28 non-transient non-community systems (14%) and 129 transient non-community systems (65%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (75%), local government (15%), public/private partnership (9.6%) and state government (0.5%).
The 50 largest water systems in Lehigh County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Lca Allentown Division | Lehigh | 118,000 | Community | Surface water |
| 2 | Lca Wlsa Central Division | Lehigh | 47,693 | Community | Purchased surface water |
| 3 | Swt Main System | Lehigh | 14,500 | Community | Purchased surface water |
| 4 | Emmaus Borough Public Water | Lehigh | 14,000 | Community | Groundwater |
| 5 | Whitehall Twp Authority | Lehigh | 13,063 | Community | Groundwater |
| 6 | Salisbury Twp Water System | Lehigh | 8,522 | Community | Purchased surface water |
| 7 | Lv Hospital Cedar Crest | Lehigh | 8,425 | Non-transient non-community | Purchased surface water |
| 8 | Upper Saucon Twp Water Supply | Lehigh | 7,300 | Community | Purchased surface water |
| 9 | Catasauqua Mun Water Works | Lehigh | 6,598 | Community | Groundwater |
| 10 | Slatington Borough Water Sys | Lehigh | 4,450 | Community | Surface water |
| 11 | Macungie Borough Authority | Lehigh | 3,039 | Community | Groundwater |
| 12 | Lca North Whitehall Division | Lehigh | 2,910 | Community | Purchased surface water |
| 13 | Coopersburg Mun Water Auth | Lehigh | 2,570 | Community | Groundwater |
| 14 | Lehigh Carbon Community Colleg | Lehigh | 2,500 | Non-transient non-community | Groundwater |
| 15 | Lehigh Career & Technical Inst | Lehigh | 2,400 | Non-transient non-community | Groundwater |
| 16 | Alburtis Borough Authority | Lehigh | 2,117 | Community | Groundwater |
| 17 | Desales University | Lehigh | 2,000 | Community | Groundwater |
| 18 | Lca Arcadia West Division | Lehigh | 1,392 | Community | Groundwater |
| 19 | Swt Allentown Cons System | Lehigh | 1,300 | Community | Purchased surface water |
| 20 | Lca Emmaus Consecutive Div | Lehigh | 1,046 | Community | Purchased groundwater |
| 21 | Lca Washington Township Div | Lehigh | 965 | Community | Purchased surface water |
| 22 | Nwlsd High School | Lehigh | 821 | Non-transient non-community | Groundwater |
| 23 | Kernsville Elementary School | Lehigh | 750 | Non-transient non-community | Groundwater |
| 24 | Nwlsd Middle School | Lehigh | 681 | Non-transient non-community | Groundwater |
| 25 | Aqua Pa Springhouse Farms | Lehigh | 645 | Community | Groundwater |
| 26 | Kidspeace - Orchard Hills Camp | Lehigh | 640 | Non-transient non-community | Groundwater |
| 27 | Nestle Purina Petcare Co | Lehigh | 640 | Non-transient non-community | Groundwater |
| 28 | Lil Wolf MHP | Lehigh | 600 | Community | Groundwater |
| 29 | Nwlsd Elementary School | Lehigh | 582 | Non-transient non-community | Groundwater |
| 30 | Glencrest Mobile Home Park | Lehigh | 570 | Community | Groundwater |
| 31 | Hanover Township Lehigh County | Lehigh | 520 | Community | Purchased surface water |
| 32 | Lca Heidelberg Heights Div | Lehigh | 509 | Community | Groundwater |
| 33 | Lehigh Cc Club House System | Lehigh | 500 | Transient non-community | Groundwater |
| 34 | Ken-Man Water Co | Lehigh | 475 | Community | Groundwater |
| 35 | Hometown Breakfast Bar & Grill | Lehigh | 450 | Transient non-community | Groundwater |
| 36 | Peters Elementary School | Lehigh | 426 | Non-transient non-community | Groundwater |
| 37 | Yoccos South | Lehigh | 400 | Transient non-community | Groundwater |
| 38 | Big Woodys | Lehigh | 400 | Transient non-community | Groundwater |
| 39 | Shankweilers Drive in Theater | Lehigh | 400 | Transient non-community | Groundwater |
| 40 | Jordan United Church of Christ | Lehigh | 350 | Transient non-community | Groundwater |
| 41 | Allentown Lehigh Valley Koa | Lehigh | 340 | Transient non-community | Groundwater |
| 42 | Milford Bible Camp | Lehigh | 300 | Transient non-community | Groundwater |
| 43 | St Pauls Ucc of Trexlertown | Lehigh | 300 | Transient non-community | Groundwater |
| 44 | Lca Madison North Division | Lehigh | 290 | Community | Groundwater |
| 45 | Aqua Pa Country Club Gardens | Lehigh | 268 | Community | Groundwater |
| 46 | Lca Upper Milford Central Div | Lehigh | 256 | Community | Groundwater |
| 47 | Star Plaza | Lehigh | 250 | Non-transient non-community | Groundwater |
| 48 | St Michaels Archangel School | Lehigh | 250 | Non-transient non-community | Groundwater |
| 49 | Trivet Family Restaurant I | Lehigh | 250 | Transient non-community | Groundwater |
| 50 | Lehigh Valley Zoo | Lehigh | 250 | Transient non-community | Groundwater |
All other water systems in Lehigh County (147)
The remaining active systems filed under Lehigh County, largest first, with the population each reports serving.
- Heritage Baptist Ch220
- Salem Christian School220
- Buckeye Pipe Line Co210
- Lehigh Cc Halfway House Sys200
- Dunkin Donuts the Red Tomato200
- Jerusalem Western Salisbury Ch200
- Locust Valley Chapel200
- Slatington Market Place200
- Whitehall Quick Mart200
- Wedgewood Golf Course200
- Lenape Park200
- 1760 Pub N Grille200
- Village C Store200
- Route 309 Exxon200
- Fairmont Village200
- The New Country View Diner200
- Bear Rock Junction Mini Golf200
- Grumpys Bar B Que Roadhouse200
- Waste Management - Allentown180
- Victory Valley Camp180
- Creative Kids East Child Dev175
- Aqua Pa Maple Hills164
- Lca Pine Lakes Division158
- Olde Homestead Golf Club150
- Chestnut Street Plaza150
- Copeechan Fish and Game Club150
- Villa Lentini Restaurant150
- Iron Lakes Country Club150
- Jacobs Church150
- The Buttered Crumb150
- Countryside150
- Elite Sports Academy150
- Ec Waldheim Park150
- Jordan Lutheran Church150
- Mystic Chain Hall150
- Top Star Express #105150
- Premier Early Learning Center145
- Trinity Wesleyan Church145
- Woodside Mobile Home Park130
- Lehigh Valley Childrens Center130
- Goddard School130
- Schnecksville Plaza130
- Yoccos 100125
- Lehigh Valley Baptist Church125
- Lca Beverly Hills Division122
- Y2kids Child Care Center120
- Premise Maid Candies120
- Old Zionsville Ucc120
- Zions Evangelical Lutheran Ch120
- Crystal Spring Dairy Farm100
- Rural Sportsmens Assn100
- Difiores Pizza100
- Monterre Vineyards100
- Grace Community Church100
- Vera Cruz Tavern100
- Wescosville Plaza100
- Weisenberg Center100
- Katies Macalush Family Rest100
- Trinity Great Swamp Ucc100
- Dominos Pizza100
- Jasper Park100
- Domaine Pterion Vineyard100
- Giuseppes Ristorante100
- Norma Js Restaurant100
- Katies Country Kitchen100
- Mariachi Grille & Tonys Pizza100
- Two Brothers Pizzeria & Restur100
- Camp Fowler100
- Orchard View Swim Club100
- Two Kings Pizzeria100
- R & C Service Center100
- Morgenland Union Church100
- Ebenezer United Ch of Christ100
- Feasta Italiana100
- Grouse Hall Fish and Game Assn100
- House & Barn100
- St Pauls Lutheran Church100
- Chestnut Hill Church100
- Country Place Shopping Center100
- Victory Park100
- The Trapp Door Gastropub100
- Sliders Pub100
- Hope Community Evang Congr Ch100
- Upper Milford Wd Fire Co #1100
- Orefield Kingdom Hall of Jw100
- Demarcos Italian Restaurant100
- Friedens Fire Co99
- Creative Kids North92
- World of Imagination91
- Mount Trexler Manor90
- Heidelberg Acres MHP90
- Cliu Lehigh Learning & Adj Sch90
- Terryhill Estates MHP90
- Lca Mill Creek Division88
- Milford LDS Church80
- Ruffinos Italian Kitchen75
- Ye Olde Limeport Hotel75
- Lehigh Gap Nature Center75
- Morgans Restaurant75
- Spring Valley Tavern70
- Grace Community Church70
- Valley View Estates68
- Macungie Village MHP65
- A Childs Future Elc62
- Upper Milford Mennonite Church60
- Leather Corner Post Hotel50
- United Presb Ch of Slatington50
- New Tripoli Hotel50
- Saint Peters Union Church50
- Trexlertown Crossings50
- Papa Rossis Pizzeria50
- Super 8 Motel #373550
- Curious Goods at Bake Oven Inn50
- Miracle League of the Lv Field50
- Chris & Eli Family Restaurant50
- Slatington Skeet and Sporting50
- Ontelaunee Rod & Gun Club50
- Hilltop Gardens on Chestnut50
- Ranger Rod & Gun Club50
- Ontelaunee Park50
- Wanamakers General Store50
- The New Best Station Hotel50
- Cornerstone Living44
- Ossies Mobile Home Community40
- Gsep Mountain House Camp40
- Grims Mobile Home Court40
- Alburtis Rod and Gun Club40
- Foley Cat35
- Ziegels Union Church30
- The Inside Scoop Ice Cream30
- Old Post Inn30
- Dunkin Donuts25
- Earl T Adams Memorial Park25
- St Lukes North Whitehall25
- Community Baptist Church25
- 2047 Building25
- Ethos Clinic25
- Upper Milford Twp Muni Cntr25
- Stony Run Winery Breinigsville25
- Trexler Environmental Center25
- Pappys Orchard and Lisas Kitch25
- North End Rod & Gun Club25
- Limeport Deli25
- Binny Mart25
- Louies Bakery25
- Willow Haven Farm25
- Pa Turnpike Lehigh Tunnel25
Lehigh County water systems: frequently asked questions
How many public water systems are in Lehigh County, Pennsylvania?
EPA's SDWIS records file 197 active public water systems under Lehigh County, Pennsylvania: 40 community systems (20%), 28 non-transient non-community systems (14%) and 129 transient non-community systems (65%).
Who supplies drinking water in Lehigh County, PA?
The largest community water systems filed under Lehigh County are Lca Allentown Division (118,000 people served), Lca Wlsa Central Division (47,693 people served) and Swt Main System (14,500 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Lehigh County's drinking water come from groundwater or surface water?
Of the 197 active public water systems in Lehigh County, 94% draw mainly on groundwater and 5.6% on surface water, counting purchased supplies. The largest system, Lca Allentown Division, uses surface water.
Where can I find a water quality report for Lehigh County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 40 community systems are filed under Lehigh County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Lehigh County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Pennsylvania water systems
- All Pennsylvania public water systems· 7,217 active
- Pike County· 208 systems
- Wayne County· 200 systems
- Northampton County· 199 systems
- York County· 198 systems
- Schuylkill County· 176 systems
- Montgomery County· 166 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Lehigh County, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/lehigh (data as of October 1, 2026).