USPO Terminal Annex
900 Alameda St · Los Angeles, Los Angeles County, CA
Source: OpenStreetMap
USPO Terminal Annex is a mapped data center in Los Angeles County, CA. DataCentersExposed has documented a 99,270 sq ft footprint at this site.
Reporting by Eric Keller · Updated Jun 14, 2026
Overview
source: linkUSPO Terminal Annex is a mapped data center in Los Angeles, Los Angeles County, California, tied to the United States Postal Service. Records put its footprint at 99,270 square feet. The site draws power from the Los Angeles Department of Water & Power within the LDWP balancing authority.
Grid & water — why here
source: HIFLD · EPAThe closest existing grid infrastructure and the municipal water system this location sits in — the same constraints the buildout model screens on (it won't site a campus more than ~2 km from a substation or ~5 km from municipal water). Distances are straight-line to public HIFLD/EPA features, not a metered connection.
In the news
source: Google News- Los Angeles-based firm breaks ground on $15B data center in Hudspeth CountyKTSM 9 News· Oct 9, 2026
- Fisk Electric wins $24M modular contract for Houston data centerConstruction Dive· Oct 9, 2026
- South El Monte Puts 45 Day Moratorium on Data Center and Battery Facility DevelopmentStreetsblog Los Angeles· Oct 8, 2026
- LA County Supervisors consider developing data center banOur Weekly· Oct 8, 2026
- L.A. County Considers Restrictions on Large Data CentersLAmag· Oct 6, 2026
- County Eyes AI Data Center Ban in Unincorporated Areaswestsidecurrent.com· Oct 5, 2026
Tax breaks & subsidies
source: Good Jobs First / GASB 77No per-deal tax break is linked to this site yet. No state discloses the recipient of a data-center abatement at the facility level, so per-site deals are rare in the public record. If you have a development agreement or board resolution for this site, send it to us.
Water use
No public record of this facility's water use. We check state withdrawal reporting for self-supplied sites; municipally supplied sites only become visible through a public-records request to the local water utility — a per-facility request tool is coming. If you have a utility document for this site, send it to us.
EPA permits & violations
source: EPA ECHONo reported violations as of last sync.
Air quality near this site
source: AirNowAir Quality Index from the nearest AirNow reporting area (Central LA CO), as of 2026-06-10. Regional context — not this facility's own emissions.
Who lives nearby
source: Census ACS 2023Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.
Nearest school
source: HIFLD / NCESThe nearest public school, Castelar Street Elementary in Los Angeles, is 0.5 mi from this site (584 students). 6 public schools sit within a mile of the site.
Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).
Hearings timeline
No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.