Guam’s defense footprint can be measured through people stationed or employed on the island, military-related spending, federal contracts, and Department of Defense obligations. The figures below come from the 2023 Guam Statistical Yearbook, with each measurement period identified because the personnel and financial series cover different years.
Table of contents
- Defense personnel in 2021–2023
- Earlier military and dependent counts
- Military and dependents as a share of residents
- Air Force, Navy, Guard, and civilian staffing
- Military spending in FY2010
- Department of Defense contracts
- Guam buildup obligations and federal spending
Defense personnel in 2021–2023
The 2023 Guam Statistical Yearbook reports 10,300 total military and Department of Defense personnel in Guam in 2023. The corresponding total was 9,783 in 2022 and 11,258 in 2021. These are annual counts from Table 8-02, and the category is broader than active-duty service members because it includes the yearbook’s combined military and DoD personnel measure.
Active-duty personnel numbered 6,456 in 2023, compared with 6,282 in 2022 and 6,281 in 2021. The three-year pattern therefore shows a nearly unchanged count between 2021 and 2022, followed by a higher 2023 count. The figures describe personnel counted in Guam during each year; they are not a forecast of future staffing.
The same table records 2,242 U.S. Air Force personnel in 2023, 2,206 in 2022, and 2,179 in 2021. U.S. Navy personnel numbered 3,811 in 2023, 3,976 in 2022, and 3,801 in 2021. In other words, the reported Navy count was higher than the Air Force count in each of these three years.
National Guard or Reserve personnel totaled 956 in 2023, 826 in 2022, and 2,505 in 2021. This series is distinct from the active-duty series, so the categories should not be added together unless a source explicitly defines them as mutually exclusive components of a total.
| Measure | 2021 | 2022 | 2023 |
|---|---|---|---|
| Total military and DoD personnel | 11,258 | 9,783 | 10,300 |
| Active-duty personnel | 6,281 | 6,282 | 6,456 |
| U.S. Air Force personnel | 2,179 | 2,206 | 2,242 |
| U.S. Navy personnel | 3,801 | 3,976 | 3,811 |
| National Guard or Reserve personnel | 2,505 | 826 | 956 |
| APF DoD civilian employees | 2,472 | 2,675 | 2,888 |
Source: 2023 Guam Statistical Yearbook, Table 8-02.
Earlier military and dependent counts
The yearbook’s Table 8-03 uses a different historical presentation. It reports 6,217 total military and dependents in 2020 and 6,140 in 2019. The same measure was 11,559 in 2017, 12,807 in 2016, 13,326 in 2015, and 12,654 in 2014.
Those observations should be read as the values labeled by Table 8-03 rather than silently merged with the 2021–2023 “total military and DoD personnel” series in Table 8-02. The labels and table references differ, and the yearbook does not provide a basis here for treating every historical value as an identical measure.
For active-duty personnel, Table 8-03 reports 6,217 in 2020 and 6,140 in 2019. It reports 5,685 active-duty personnel in 2017. Navy active-duty personnel numbered 3,824 in 2020, 3,801 in 2019, and 3,354 in 2017.
The historical counts provide several snapshots of Guam’s defense-related population, but they do not by themselves establish why the values changed from one year to another. A count is evidence of the size of the measured group in that period; it is not an explanation of movement, deployment policy, construction schedules, or future plans.
Military and dependents as a share of residents
Table 8-03 also pairs selected military-and-dependent counts with resident-population figures and reported shares. In 2020, Guam had a resident population of 153,836, used in the table to derive a 4.0% military-and-dependents share. In 2019, the resident population was 154,388, also associated with a 4.0% share.
For 2017, the yearbook lists a resident population of 155,493 and a military-and-dependents share of 7.4%. The population denominator matters: a percentage is not an independent headcount, and the reported share should remain tied to the year and population base shown in the source table.
| Year | Resident population used in the table | Military-and-dependents share |
|---|---|---|
| 2020 | 153,836 | 4.0% |
| 2019 | 154,388 | 4.0% |
| 2017 | 155,493 | 7.4% |
Source: 2023 Guam Statistical Yearbook, Table 8-03. The yearbook’s reported percentage is retained as published; no new share is calculated here for years where the supplied figures do not provide a matching denominator and definition.
Air Force, Navy, Guard, and civilian staffing
The 2021–2023 staffing figures show several different parts of the defense workforce. The APF DoD civilian employee count was 2,888 in 2023, 2,675 in 2022, and 2,472 in 2021. APF means the category used by the yearbook; it should not be generalized to every civilian worker in Guam.
Within the APF civilian series, U.S. Air Force civilians numbered 474 in 2023, 423 in 2022, and 396 in 2021. U.S. Navy APF civilians numbered 1,435 in 2023, 1,332 in 2022, and 1,345 in 2021.
The Navy and Air Force civilian counts are component-specific observations, while the APF DoD civilian total is the broader table category. The 2023 figures also show why a defense presence is not adequately described by active-duty personnel alone: the yearbook separately identifies military personnel, Guard or Reserve personnel, and civilian employees.
For context within the military categories, the yearbook reports 3,811 U.S. Navy personnel and 2,242 U.S. Air Force personnel in 2023, alongside 956 National Guard or Reserve personnel. The comparable 2023 APF civilian counts are 1,435 for the Navy and 474 for the Air Force. These figures are measurements for 2023, not staffing targets.
Military spending in FY2010
The yearbook’s expenditure tables provide a financial snapshot for fiscal year 2010. Guam had $257.2 million in military-pay expenditures and $72.9 million in civilian-pay expenditures. Military-construction expenditures were $734.1 million, while total military spending was $1,064.2 million.
Table 8-09 reports $1,092.6 million in Department of Defense expenditures in FY2010. Total federal expenditures were $2,012.4 million in the same fiscal year. These are nominal dollar amounts as presented by the yearbook; the supplied figures do not include an inflation adjustment or a later-year spending series.
The FY2010 categories also illustrate why “defense spending” can mean more than one thing in a statistical table. Military pay, civilian pay, military construction, total military spending, DoD expenditures, and total federal expenditures are separate labels. They should not be substituted for one another when describing the scale of public spending.
Department of Defense contracts
Table 8-13 reports total Department of Defense contracts of $2,091,750,817 in 2021. The total was $1,277,026,489 in 2020 and $1,119,358,281 in 2019. These are contract totals for the years identified by the table, not the same measure as military pay, construction expenditures, or DoD obligations.
The 2021 total is also broken out by selected agencies. Navy DoD contracts were $1,837,518,226, Air Force DoD contracts were $121,320,912, and Defense Logistics Agency DoD contracts were $64,937,255. Each amount is labeled for 2021 in Table 8-13.
| Contract measure | Year | Amount |
|---|---|---|
| Total DoD contracts | 2019 | $1,119,358,281 |
| Total DoD contracts | 2020 | $1,277,026,489 |
| Total DoD contracts | 2021 | $2,091,750,817 |
| Navy DoD contracts | 2021 | $1,837,518,226 |
| Air Force DoD contracts | 2021 | $121,320,912 |
| Defense Logistics Agency DoD contracts | 2021 | $64,937,255 |
Source: 2023 Guam Statistical Yearbook, Table 8-13. The agency rows are retained as reported and are not treated as a complete decomposition of the total because only the supplied categories are shown.
Guam buildup obligations and federal spending
The yearbook’s Guam buildup section reports $1,660,443,227 in FY2018 Department of Defense obligations and $2,987,748,678 in FY2022 DoD obligations. These figures are obligations tracked in that section, so they are not interchangeable with the contract totals in Table 8-13 or the FY2010 expenditure figures in Tables 8-08 and 8-09.
For FY2022, the yearbook identifies the Department of Defense as Guam’s top federal agency, with $1,770,304,470 in spending. This is an agency spending figure for the fiscal year and should be kept distinct from the $2,987,748,678 in FY2022 DoD obligations tracked in the buildup section.
Taken together, the available measurements cover several dimensions of Guam’s defense role: 10,300 total military and DoD personnel in 2023; 6,456 active-duty personnel in that year; 2,888 APF DoD civilian employees; $2,091,750,817 in total DoD contracts in 2021; and $2,987,748,678 in FY2022 DoD obligations. Because the periods and definitions differ, the most useful reading is a set of labeled snapshots rather than one combined total.
All figures in this article are from the 2023 Guam Statistical Yearbook: Tables 8-02, 8-03, 8-08, 8-09, and 8-13, plus pages 63–64 for the Guam buildup and FY2022 federal-agency figures. The yearbook is the named source for the figures; legacy values are presented as reported and are not independently verified here.