Washington County, Mississippi: Power, Data Centers and the Local Economy
Home to Greenville, Leland and Hollandale
Washington County is where a large share of Mississippi's next power plants are planned. Construction employs 497, up 57.8% since 2019. Washington County is home to Greenville, Leland, Hollandale and Metcalfe. 1,019 MW of new generation is planned here across 3 units, led by Entergy Mississippi LLC (natural gas), the largest pipeline among Mississippi's counties. 200 MW of it is already under construction or built. Unemployment was 4.6% in August 2026, against 7.3% in 2019. Owners plan to retire 781 MW more by 2035, led by Gerald Andrus in 2035.
Cities and towns in Washington County
Washington County is home to Greenville, Leland, Hollandale and Metcalfe.
Unincorporated communities (governed by the county): Elizabeth, Glen Allan, Stoneville, Winterville.
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 Washington County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Mississippi |
|---|---|---|---|---|
| Population (2020 → 2025) | 44,639 | 40,446 | ▼ 9.4% | 18th of 82 by size |
| Total jobs (2019 → 2025) | 16,297 | 14,534 | ▼ 10.8% | 72nd of 82 by growth |
| Average annual pay (2019 → 2025) | $35,531 | $45,627 | ▲ 28.4% | — |
| Construction jobs (2019 → 2025) | 315 | 497 | ▲ 57.8% | 9th of 45 by growth |
| Unemployment rate (2019 → August 2026) | 7.3% | 4.6% | ▼ 2.7pts | — |
| Generating capacity added since 2019 | — | 0 MW | — | |
| Generating capacity retired since 2019 | — | 0 MW | — | |
| Planned generation (Aug 2026) | — | 1,019 MW | 130% of today's fleet | 1st of 14 by size |
Employers here counted 14,534 jobs in 2025, down 10.8% from 2019. Its power plants have 781 MW of capacity, 100% of it natural gas, the 10th largest fleet in Mississippi. 40,446 people live here, down 9.4% since 2020. Entergy Mississippi LLC is the largest utility serving Washington County, one of 4 with territory here. Its residential customers paid an average 13.21¢/kWh in 2024, above the 12.78¢ median for Mississippi utilities.
Who powers Washington County
Utilities with service territory in Washington County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Entergy Mississippi LLC | Investor Owned | Bundled | 384,611 | 13.21¢ | 39% |
| Delta Electric Power Assn | Cooperative | Bundled | 20,460 | 13.75¢ | 8% |
| City of Leland - (MS) | — | — | — | — | — |
| Twin County Electric Pwr Assn | — | — | — | — | — |
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 1
| Technology | Capacity | Share |
|---|---|---|
| Natural gas | 781 MW | 100% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Gerald Andrus | Entergy Mississippi LLC | Natural gas | 781 MW | 1975 |
Planned generation 3
| Plant | Technology | MW | Status | Year | Owner |
|---|---|---|---|---|---|
| Delta Blues Advanced Power Station | Natural Gas Fired Combined Cycle | 477 MW | Approvals pending | 2028 | Entergy Mississippi LLC |
| Delta Blues Advanced Power Station | Natural Gas Fired Combined Cycle | 342 MW | Approvals pending | 2028 | Entergy Mississippi LLC |
| Greer Solar Plant | Solar Photovoltaic | 200 MW | Under construction (≤50%) | 2026 | Greer Solar, LLC |
Scheduled to retire
| Plant | Technology | MW | Year |
|---|---|---|---|
| Gerald Andrus | Natural gas | 781 MW | 2035 |
The Washington County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 14,534 | $45,627 | 1.00 |
| Construction | 497 | $63,714 | 0.65 |
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 Washington County
No data center, local measure or delayed project is on record in Washington County. Mississippi has 1 local measure on record statewide.
Washington County and its neighbors
Of the 6 counties that border Washington County, Sunflower 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 |
|---|---|---|---|---|---|---|
| Washington County | 40,446 | ▼ 10.8% | 781 MW | 1,019 MW | — | — |
| Bolivar County | 28,262 | ▼ 3.2% | — | — | — | — |
| Chicot County AR | 9,107 | ▼ 10.4% | 100 MW | — | — | — |
| Humphreys County | 7,001 | ▼ 12.8% | — | — | — | — |
| Issaquena County | 1,263 | ▼ 2.1% | — | — | — | — |
| Sharkey County | 3,097 | ▼ 18.0% | — | — | — | — |
| Sunflower County | 22,893 | ● 0.0% | 199 MW | 100 MW | — | — |
More of Mississippi
Washington County, answered from the record
Who provides electricity in Washington County, Mississippi?
4 utilities have service territory in Washington County in the EIA-861 2024 report: Entergy Mississippi LLC, Delta Electric Power Assn, City of Leland - (MS), Twin County Electric Pwr Assn. The largest, Entergy Mississippi LLC, charged residential customers 13.21¢/kWh on average in 2024.
What county is Greenville, MS in?
Greenville is in Washington County, Mississippi. About 26,530 people live there (2025 Census estimate).
What power plants are in Washington County?
1 operating plant with 781 MW of capacity. The largest is Gerald Andrus (781 MW, natural gas).
How much new power is planned in Washington County?
1,019 MW across 3 units in the August 2026 EIA-860M inventory, 200 MW of it under construction or built. The largest owner is Entergy Mississippi LLC.
Are there data centers in Washington County?
The SAVRN Data Center Map has no data center in Washington County.
Is Washington County adding jobs?
Employers counted 14,534 jobs in 2025 against 16,297 in 2019 (-10.8%, BLS QCEW). Construction went from 315 to 497.
Does Washington County have a data center moratorium?
No county-level measure is on record for Washington County. Mississippi has 1 local measure statewide, listed on the state page.