# Warren County, New Jersey: Power, Data Centers and the Local Economy Home to Phillipsburg, Hackettstown and Lopatcong Township Local rules on data centers are on the record in Warren County. Warren County is home to Phillipsburg, Hackettstown, Lopatcong Township and Mansfield Township. The Moratorium Tracker holds 2 local measures here (2 in force); the latest is “Ordinance prohibiting data centers”. Unemployment was 4.6% in August 2026, against 3.3% in 2019. 16 MW has retired here since 2019, including Covanta Warren Energy (other technologies, 14 MW, 2019). 56 MW of that came online in 2019 or later, mostly solar. 16 MW of generating capacity retired since 2019 576 MW of operating power plants, mostly hydro +3.5% total jobs since 2019, now 33,915 ## Cities and towns in Warren County Warren County is home to Phillipsburg, Hackettstown, Lopatcong Township and Mansfield Township. Phillipsburg15,456 residents Hackettstown10,185 residents Lopatcong Township9,537 residents Mansfield Township7,996 residents Washington7,326 residents Washington Township7,108 residents Blairstown Township5,815 residents Greenwich Township5,726 residents Independence Township5,666 residents Allamuchy Township5,484 residents White Township4,706 residents Pohatcong Township3,578 residents Franklin Township3,049 residents Knowlton Township2,947 residents Liberty Township2,701 residents Belvidere2,551 residents Harmony Township2,542 residents Oxford Township2,469 residents Alpha2,362 residents Frelinghuysen Township2,239 residents Hope Township1,875 residents Hardwick Township1,635 residents Unincorporated communities (governed by the county): Allamuchy, Anderson, Asbury, Beattystown, Blairstown, Brainards, Brass Castle, Bridgeville, Broadway, Brookfield, Buttzville, Columbia, Delaware, Delaware Park, Finesville, Great Meadows, Greenwich, Hainesburg, Harmony, Hope, Hutchinson, Johnsonburg, Lopatcong Overlook, Marksboro, Mount Hermon, Mountain Lake, New Village, Oxford, Panther Valley, Port Colden, Port Murray, Silver Lake, Stewartsville, Upper Pohatcong, Upper Stewartsville, Vienna. Residents are 2025 Census estimates for the part of each city, town or township inside this county. Census publishes no annual estimate for unincorporated communities. ## What changed in Warren County | Measure | Then | Now | Change | Rank in New Jersey | |---|---|---|---|---| | Population (2020 → 2025) | 109,431 | 112,953 | ▲ 3.2% | 19th of 21 by size | | Total jobs (2019 → 2025) | 32,768 | 33,915 | ▲ 3.5% | 7th of 21 by growth | | Average annual pay (2019 → 2025) | $51,966 | $65,662 | ▲ 26.4% | — | | Electric utility jobs (2019 → 2025) | 126 | 115 | ▼ 8.7% | — | | Unemployment rate (2019 → August 2026) | 3.3% | 4.6% | ▲ 1.3pts | — | | Generating capacity added since 2019 | — | 56 MW | | — | | Generating capacity retired since 2019 | — | 16 MW | | — | Its power plants have 576 MW of capacity, 79% of it hydro, the 10th largest fleet in New Jersey. Employers here counted 33,915 jobs in 2025, up 3.5% from 2019 (the 7th fastest growth of 21 New Jersey counties). Jersey Central Power & Lt Co is the largest utility serving Warren County. Its residential customers paid an average 15.65¢/kWh in 2024, below the 20.42¢ median for New Jersey utilities. 112,953 people live here, up 3.2% since 2020. ## Who powers Warren County ### Utilities with service territory in Warren County | Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales | |---|---|---|---|---|---| | Jersey Central Power & Lt Co | Investor Owned | Bundled | 1,038,258 | 15.65¢ | 24% | Customer counts, prices and sales shares cover each utility's whole system in the state, not only this county. Commercial sales include data centers. ### Operating power plants | Technology | Capacity | Share | |---|---|---| | Hydro | 453 MW | 79% | | Solar | 91 MW | 16% | | Battery storage | 20 MW | 3% | | Natural gas | 12 MW | 2% | | Largest plants | Owner | Technology | MW | Since | |---|---|---|---|---| | Yards Creek Energy | Yards Creek Energy | Hydro | 453 MW | 1965 | | Stryker 22, L.L.C. | Stryker 22, L.L.C. | Battery storage | 20 MW | 2018 | | Foul Rift Solar Farm | NJR Clean Energy Ventures Corporation | Solar | 15 MW | 2025 | | Mars Wrigley Confectionery US, LLC | Mars Wrigley Confectionery US, LLC | Natural gas | 12 MW | 1984 | | Changewater 1 | NJR Clean Energy Ventures Corporation | Solar | 11 MW | 2026 | | DSM Nutritional Products Solar | DG Northeast Solar II, LLC | Solar | 10 MW | 2018 | ### Retired since 2019 | Plant | Technology | MW | Year | |---|---|---|---| | Covanta Warren Energy | Other technologies | 14 MW | 2019 | | PSEG Hackettstown | Solar | 2 MW | 2024 | ## The Warren County labor market | Industry (2025) | Jobs | Average pay | Concentration vs U.S. | |---|---|---|---| | All industries | 33,915 | $65,662 | 1.00 | | Electric utilities | 115 | $195,477 | 1.25 | Concentration is the BLS location quotient: 1.0 means the industry holds the same share of local jobs as it does nationally. Industry rows count private employers; cells BLS suppresses are left out. ## Data centers and local rules in Warren County ### Local measures | Measure | Status | Date | |---|---|---| | Ordinance prohibiting data centers | In force | 2026-05 | | Municipal ban on data centers | In force | 2026-04 | ## Warren County and its neighbors Of the 6 counties that border Warren County, Northampton County carries the most build-out activity: data centers, planned generation and operating plants combined. [[[[[[ | County | Population | Jobs since 2019 | Operating MW | Planned MW | Data centers | Local measures | |---|---|---|---|---|---|---| | Warren County | 112,953 | ▲ 3.5% | 576 MW | — | — | 2 | | Bucks County](https://savrn.com/power-supply-chain-map/pennsylvania/bucks-county) PA | 647,828 | ▲ 3.0% | 2,027 MW | — | 2 | 1 | | Hunterdon County](https://savrn.com/power-supply-chain-map/new-jersey/hunterdon-county) | 131,781 | ▼ 1.3% | 614 MW | — | — | 1 | | Monroe County](https://savrn.com/power-supply-chain-map/pennsylvania/monroe-county) PA | 167,179 | ▼ 0.4% | 23 MW | — | — | — | | Morris County](https://savrn.com/power-supply-chain-map/new-jersey/morris-county) | 524,251 | ▲ 2.5% | 71 MW | — | 3 | 2 | | Northampton County](https://savrn.com/power-supply-chain-map/pennsylvania/northampton-county) PA | 324,411 | ▲ 3.5% | 3,852 MW | — | 3 | — | | Sussex County](https://savrn.com/power-supply-chain-map/new-jersey/sussex-county) | 148,063 | ▲ 2.0% | 74 MW | 6 MW | 3 | 3 | ## More of New Jersey [All New Jersey countiesThe state power page and county mapOpen →](https://savrn.com/power-supply-chain-map/new-jersey)[Morris County524,251 peopleOpen →](https://savrn.com/power-supply-chain-map/new-jersey/morris-county)[Sussex County148,063 peopleOpen →](https://savrn.com/power-supply-chain-map/new-jersey/sussex-county)[Hunterdon County131,781 peopleOpen →](https://savrn.com/power-supply-chain-map/new-jersey/hunterdon-county) ## Warren County, answered from the record ### Who provides electricity in Warren County, New Jersey? 1 utility has service territory in Warren County in the EIA-861 2024 report: Jersey Central Power & Lt Co. The largest, Jersey Central Power & Lt Co, charged residential customers 15.65¢/kWh on average in 2024. ### What county is Phillipsburg, NJ in? Phillipsburg is in Warren County, New Jersey. About 15,456 people live there (2025 Census estimate). ### What county is Hackettstown, NJ in? Hackettstown is in Warren County, New Jersey. About 10,185 people live there (2025 Census estimate). ### What power plants are in Warren County? 17 operating plants with 576 MW of capacity. The largest is Yards Creek Energy (453 MW, hydro). ### Are there data centers in Warren County? The SAVRN Data Center Map has no data center in Warren County. The nearest activity on record is next door in Sussex County. ### Is Warren County adding jobs? Employers counted 33,915 jobs in 2025 against 32,768 in 2019 (+3.5%, BLS QCEW). ### Does Warren County have a data center moratorium? The SAVRN Moratorium Tracker holds 2 local measures for Warren County, 2 in force. --- Canonical: https://savrn.com/power-supply-chain-map/new-jersey/warren-county Updated: 2026-10-08. Refreshed weekly by SAVRN from EIA, BLS, BEA, Census and the SAVRN trackers. License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).