Updated April 2026 · FY2024 USAspending.gov data
District of Columbia Federal Spending
DC · Rank #5 of 51
District of Columbia is a major federal-spending state. 148 contractors based in District of Columbia together pulled $26.1B in federal obligations — about 4.92% of national contract spending — across the most recent fiscal year reported by USAspending.gov.
Why District of Columbia Ranks Where It Does
Large federal-spending states like District of Columbia usually combine one or two flagship agency relationships with a deeper bench of professional-services and IT contractors. Department of Defense sits at the top of District of Columbia's agency ledger; the supporting cast (legal services, engineering, R&D, healthcare administration) tends to spread across many smaller awards rather than a few large ones.
For broader context, see the federal spending by state breakdown, which ranks every state and DC against this same dataset, or look at spending by industry to see which categories dominate nationally.
Top Contractors in District of Columbia
| Rank | Contractor | Obligations |
|---|---|---|
| #1 | Optum Public Sector Solutions, Inc. | $297.3M |
| #2 | Lockheed Martin Corporation | $248.3M |
| #3 | Mckesson Corporation | $132.9M |
| #4 | The Boeing Company | $126.9M |
| #5 | Electric Boat Corporation | $126.7M |
| #6 | Triwest Healthcare Alliance Corp. | $123.7M |
| #7 | Humana Government Business Inc. | $118.5M |
| #8 | Raytheon Company | $114.4M |
| #9 | Huntington Ingalls Incorporated | $110.0M |
| #10 | Booz Allen Hamilton Inc. | $102.2M |
District of Columbia's federal-contracting base is broad. Optum Public Sector Solutions, Inc. is the largest single recipient at $297.3M (about 1.1% of state total), but no contractor dominates — the state's spending is spread across many recipients, which makes the total more resilient to any one contract decision.
What the Federal Government Buys in District of Columbia
The largest spending category in District of Columbia is Defense & Weapons at $9.1B. That category mix tells you what the federal government is buying from District of Columbia contractors — services, manufactured goods, research, or construction. The Federal Procurement Data System uses the Product and Service Code (PSC) hierarchy to tag every award; the breakdown shown on this page rolls those PSCs into the major categories.
How These Numbers Are Calculated
Every total on this page is computed from the USAspending.gov award dataset, filtered to recipients with a primary place of performance in District of Columbia. Recipient identity is reconciled to the SAM.gov Unique Entity ID, which ties subsidiaries that file separately to a single parent record where the federal data supports it. Industry rollups follow the Product and Service Code hierarchy maintained by the Federal Procurement Data System. Read the full methodology.
Frequently Asked Questions About District of Columbia Federal Spending
How much federal contract spending does District of Columbia receive?
District of Columbia received $26,055,325,235 in federal contract obligations in the most recent fiscal year (FY2024), based on USAspending.gov data. That ranks District of Columbia #5 of 51 states (and DC) for federal contract spending.
Who is the biggest federal contractor in District of Columbia?
Optum Public Sector Solutions, Inc. is the largest federal contractor based in District of Columbia, with $297.3M in obligations. The full top-contractor list is shown above; click any name to open that contractor's profile, including all agencies, categories, and individual awards.
Which federal agencies spend the most in District of Columbia?
Department of Defense is the dominant federal customer in District of Columbia at $14.3B, followed by Department of Health and Human Services. The agency panel shows the full mix; large states usually show several agencies, while smaller-spending states tend to be dominated by one.
What does the federal government buy in District of Columbia?
The biggest spending category in District of Columbia is Defense & Weapons at $9.1B. Categories follow the PSC hierarchy from the Federal Procurement Data System and span services, products, research, and construction.
Where does this data come from?
Every figure is sourced from USAspending.gov, the official federal spending database mandated by the DATA Act. Recipient identity is reconciled to SAM.gov Unique Entity ID registrations. Data is public domain and refreshes whenever USAspending.gov publishes a new release.
Source: U.S. federal government, USAspending.gov & SAM.gov. Data is public domain. Cite as: "TaxDollarData, District of Columbia federal spending, FY2024. Data: USAspending.gov."
Last updated 2026-04-09 · figures represent federal obligations for FY2024.
The this entity record above pulls directly from USASpending.gov federal awards data. What follows is the per-entity context — how this entity sits in the broader U.S. federal government spending distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the USASpending.gov federal awards data portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. federal contracts, grants, and awards. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.