Federal Excess Datacenter Sites
At a glance
Surplus federal property released for civilian reuse. Federal excess parcels can carry existing infrastructure and favorable disposition terms, but acquisition timelines vary with the disposing agency.
How do federal excess sites compare with other site types?
Federal Excess sites are the 5th-largest of 9 site types by count and the 9th-highest of 9 by average DC Readiness. Their 47.5 average is below the 53.0 average across all 147,272 sites. The average interconnection-queue wait in their markets, 4.5 yrs, is the 6th-shortest of 9. The federal excess category is strongest on hazard resilience, averaging 70.6 against a national average of 66.8; its weakest factor is water, at 46.0 versus 72.3 nationally.
Where are federal excess datacenter sites located?
The five states with the most are Washington (3,676, 21%), California (3,212, 18%), Arizona (1,616, 9%), Nebraska (1,057, 6%) and Oklahoma (991, 6%). Federal Excess sites appear in 35 states. By grid region, WECC holds 56%, SPP holds 21% and CAISO holds 17%.
Federal Excess sites by state
- Washington3,676
- California3,212
- Arizona1,616
- Nebraska1,057
- Oklahoma991
- Utah930
- Idaho922
- Colorado911
- Wyoming750
- Montana723
- Oregon697
- New Mexico422
- Nevada374
- Alaska150
- Florida124
- New York95
- Michigan92
- Illinois89
- Missouri83
- Ohio77
- Wisconsin69
- Minnesota69
- Maryland60
- Arkansas59
- Mississippi53
- Alabama52
- Indiana47
- Maine37
- Massachusetts26
- New Jersey26
- New Hampshire20
- Connecticut13
- Delaware4
- Tennessee1
- Kansas1
Average sub-score profile
Top 25 federal excess datacenter sites
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| Kansas City VA Medical Center | Federal Excess | MO | Jackson County | — | — | 4.3 yrs | 57.7 |
| BILLINGS | Federal Excess | MT | Yellowstone County | — | — | 1.1 yrs | 57.7 |
| BOZEMAN FISH TECHNOLOGY CENTER | Federal Excess | MT | Gallatin County | — | — | 1.1 yrs | 57.6 |
| MIAMI INT'L AIRPORT | Federal Excess | FL | Miami-Dade County | — | — | 3.7 yrs | 57.5 |
| FOREST PRODUCTS LABORATORY | Federal Excess | WI | Dane County | — | — | 4.3 yrs | 57.5 |
| VAMC Wilmington, DE | Federal Excess | DE | New Castle County | — | — | 1.5 yrs | 57.5 |
| William S. Middleton-Memorial VH | Federal Excess | WI | Dane County | — | — | 4.3 yrs | 57.4 |
| ROCHESTER FMC | Federal Excess | MN | Olmsted County | — | — | 4.3 yrs | 57.4 |
| MONTANA - LEASE | Federal Excess | MT | Yellowstone County | — | — | 1.1 yrs | 57.4 |
| US NATIONAL POULTRY RES CTR | Federal Excess | MI | Ingham County | — | — | 2.2 yrs | 57.4 |
| MANCHESTER ASR-5 | Federal Excess | NH | Rockingham County | — | — | 4.3 yrs | 57.4 |
| West Haven VA Connecticut Healthcare System | Federal Excess | CT | South Central Connecticut County | — | — | 4.3 yrs | 57.4 |
| ANN ARBOR MUNICIPAL AIRPORT | Federal Excess | MI | Washtenaw County | — | — | 2.2 yrs | 57.4 |
| FOREST PRODUCTS LABORATORY | Federal Excess | WI | Dane County | — | — | 4.3 yrs | 57.3 |
| BOZEMAN FISH TECHNOLOGY CENTER | Federal Excess | MT | Gallatin County | — | — | 1.1 yrs | 57.3 |
| John D. Dingell VA Medical Center | Federal Excess | MI | Wayne County | — | — | 2.2 yrs | 57.3 |
| CHESTER, NH | Federal Excess | NH | Rockingham County | — | — | 4.3 yrs | 57.3 |
| BROOKLYN PARK, MN (GEP) | Federal Excess | MN | Hennepin County | — | — | 4.3 yrs | 57.3 |
| USDA DAIRY FORAGE RESEARCH CTR | Federal Excess | WI | Wood County | — | — | 4.3 yrs | 57.3 |
| HUBERT H HUMPHREY | Federal Excess | MN | Ramsey County | — | — | 4.3 yrs | 57.2 |
| Wood National Cemetery | Federal Excess | WI | Milwaukee County | — | — | 4.3 yrs | 57.2 |
| Huntley | Federal Excess | MT | Yellowstone County | — | — | 1.1 yrs | 57.2 |
| BOZEMAN FISH TECHNOLOGY CENTER | Federal Excess | MT | Gallatin County | — | — | 1.1 yrs | 57.2 |
| Bruce W. Carter VA Medical Center | Federal Excess | FL | Miami-Dade County | — | — | 3.7 yrs | 57.1 |
| NATIONAL WILDLIFE HEALTH CTR | Federal Excess | WI | Dane County | — | — | 4.3 yrs | 57.1 |
What do the top-scoring federal excess sites have in common?
The top 25 federal excess sites score between 57.1 and 57.7. 6 are in Montana, 6 are in Wisconsin and 3 are in Minnesota. Their counties have a median of 13 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 2 km. The median interconnection-queue wait in their markets is 4.3 years. None of the 3 with a mapped FEMA flood zone sits in a high-risk (A or V) zone. 1 lies within 25 km of a binding transmission constraint.
Federal Excess site FAQ
What is a federal excess datacenter site?
Surplus federal property released for civilian reuse. Federal excess parcels can carry existing infrastructure and favorable disposition terms, but acquisition timelines vary with the disposing agency.
How many federal excess datacenter sites are there?
GridCensus catalogs 17,528 federal excess candidate sites nationwide, averaging 47.5/100 DC Readiness — 12% of all scored sites.
Which state has the most federal excess datacenter sites?
Washington leads with 3,676 federal excess candidate sites, followed by California with 3,212.
What is the highest-scoring federal excess datacenter site?
Kansas City VA Medical Center in Jackson County, Missouri has the highest DC Readiness Score of any federal excess site, at 57.7/100.
How long is the interconnection queue for federal excess sites?
Federal Excess candidate sites sit in markets with an average interconnection-queue wait of 4.5 yrs, the 6th-shortest of 9 site types.
Other datacenter site types
- Greenfield datacenter sites· 18,112 sites
- Industrial datacenter sites· 35,788 sites
- Substation-Adjacent datacenter sites· 38,820 sites
- Former Mine datacenter sites· 26,205 sites
- Manufacturing datacenter sites· 7,657 sites
- Shovel-Ready datacenter sites· 2,365 sites
- Brownfield datacenter sites· 771 sites
- Military BRAC datacenter sites· 26 sites
By grid region
- WECC datacenter sites· 9,756 federal excess
- SPP datacenter sites· 3,604 federal excess
- CAISO datacenter sites· 2,956 federal excess
- MISO datacenter sites· 435 federal excess
- SERC datacenter sites· 372 federal excess
- PJM datacenter sites· 214 federal excess
- ISO-NE datacenter sites· 107 federal excess
- NYISO datacenter sites· 84 federal excess
Dataset updated . Screening estimates derived from public data sources.
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Federal Excess datacenter candidate sites”, https://gridcensus.com/site-types/federal-excess (data as of November 12, 2026).
Go deeper than the public screen
Every site and score for Federal Excess sites is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.