Seminole County, Florida: Power, Data Centers and the Local Economy
Home to Sanford, Altamonte Springs and Oviedo
Seminole County has more of its workforce in data processing and hosting than the country as a whole. Seminole County is home to Sanford, Altamonte Springs, Oviedo and Winter Springs. Construction employs 25,184, up 15.4% since 2019, and construction is 2.2 times as concentrated here as in the U.S. economy. Next door, Orange County has 12 data centers. Unemployment was 4.3% in August 2026, against 2.9% in 2019. Electrical contractors employ 4,332, up 19.2% since 2019 against up 16.3% statewide, at an average $68,026 a year.
Cities and towns in Seminole County
Seminole County is home to Sanford, Altamonte Springs, Oviedo and Winter Springs.
Unincorporated communities (governed by the county): Black Hammock, Chuluota, Fern Park, Forest City, Geneva, Goldenrod, Heathrow, Midway, Wekiwa Springs.
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 Seminole County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Florida |
|---|---|---|---|---|
| Population (2020 → 2025) | 471,471 | 491,884 | ▲ 4.3% | 13th of 67 by size |
| Total jobs (2019 → 2025) | 201,004 | 214,336 | ▲ 6.6% | 45th of 67 by growth |
| Average annual pay (2019 → 2025) | $50,134 | $68,006 | ▲ 35.6% | — |
| Construction jobs (2019 → 2025) | 21,828 | 25,184 | ▲ 15.4% | 36th of 59 by growth |
| Electrical contractor jobs (2019 → 2025) | 3,635 | 4,332 | ▲ 19.2% | — |
| Electric utility jobs (2019 → 2025) | 773 | 673 | ▼ 12.9% | — |
| Data processing and hosting jobs (2019 → 2025) | 1,508 | 1,135 | ▼ 24.7% | — |
| Unemployment rate (2019 → August 2026) | 2.9% | 4.3% | ▲ 1.4pts | — |
| Generating capacity added since 2019 | — | 0 MW | — | |
| Generating capacity retired since 2019 | — | 12 MW | — |
12 MW has retired here since 2019, including Rinehart (solar, 10 MW, 2021). Employers here counted 214,336 jobs in 2025, up 6.6% from 2019. Its power plants have 6 MW of capacity, 76% of it other technologies. Florida Power & Light Co is the largest utility serving Seminole County, one of 2 with territory here. Its residential customers paid an average 13.71¢/kWh in 2024. 491,884 people live here, up 4.3% since 2020.
Who powers Seminole County
Net change in operating capacity since 2019: −12 MW. Colors follow the fuel legend above.
Utilities with service territory in Seminole County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Florida Power & Light Co | Investor Owned | Bundled | 5,236,277 | 13.71¢ | 41% |
| Duke Energy Florida, LLC | Investor Owned | Bundled | 1,793,067 | 16.63¢ | 38% |
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 2
| Technology | Capacity | Share |
|---|---|---|
| Other technologies | 5 MW | 76% |
| Solar | 2 MW | 24% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Seminole Energy | NextEra Renewable Fuels, LLC | Other technologies | 5 MW | 2007 |
| Altamonte Mall | Altamonte Mall | Solar | 2 MW | 2016 |
Retired since 2019
| Plant | Technology | MW | Year |
|---|---|---|---|
| Rinehart | Solar | 10 MW | 2021 |
| Seminole Energy | Other technologies | 2 MW | 2019 |
The Seminole County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 214,336 | $68,006 | 1.00 |
| Construction | 25,184 | $76,957 | 2.22 |
| Electrical contractors | 4,332 | $68,026 | 2.80 |
| Electric utilities | 673 | $108,153 | 1.16 |
| Data processing and hosting | 1,135 | $115,340 | 1.70 |
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 Seminole County
No data center, local measure or delayed project is on record in Seminole County. Florida has 45 local measures on record statewide, and 3 neighboring counties have one: Lake County, Orange County, Volusia County.
Seminole County and its neighbors
Of the 4 counties that border Seminole County, Orange 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 |
|---|---|---|---|---|---|---|
| Seminole County | 491,884 | ▲ 6.6% | 6 MW | — | — | — |
| Brevard County | 663,982 | ▲ 9.5% | 3,705 MW | — | 2 | — |
| Lake County | 456,068 | ▲ 17.1% | 24 MW | — | — | 1 |
| Orange County | 1,528,002 | ▲ 9.9% | 2,223 MW | — | 12 | 1 |
| Volusia County | 606,573 | ▲ 7.7% | 3,324 MW | — | 1 | 1 |
More of Florida
Seminole County, answered from the record
Who provides electricity in Seminole County, Florida?
2 utilities have service territory in Seminole County in the EIA-861 2024 report: Florida Power & Light Co, Duke Energy Florida, LLC. The largest, Florida Power & Light Co, charged residential customers 13.71¢/kWh on average in 2024.
What county is Sanford, FL in?
Sanford is in Seminole County, Florida. About 67,483 people live there (2025 Census estimate).
What county is Altamonte Springs, FL in?
Altamonte Springs is in Seminole County, Florida. About 48,000 people live there (2025 Census estimate).
What county is Oviedo, FL in?
Oviedo is in Seminole County, Florida. About 41,317 people live there (2025 Census estimate).
What power plants are in Seminole County?
2 operating plants with 6 MW of capacity. The largest is Seminole Energy (5 MW, other technologies).
Are there data centers in Seminole County?
The SAVRN Data Center Map has no data center in Seminole County. The nearest activity on record is next door in Orange County.
Is Seminole County adding jobs?
Employers counted 214,336 jobs in 2025 against 201,004 in 2019 (+6.6%, BLS QCEW). Construction went from 21,828 to 25,184.
Does Seminole County have a data center moratorium?
No county-level measure is on record for Seminole County. Florida has 45 local measures statewide, listed on the state page.