The United States Air Force is the largest service branch focused on air power of any military in the world. Not surprisingly, the number of troops in the Air Force is far fewer than the US Army, despite the fact that the Air Force just surpassed the Army in terms of total budget allocation. At the same time, running the largest armada of warplanes in the world with bases all around the globe takes a pretty big team.
The current staffing quota from Congress authorizes the USAF to have a maximum of 321,500 personnel. That is a small increase over 2025. The USAF also relies on a team of over 100,000 Air National Guardsmen, more than 65,000 reservists, and hundreds of thousands of civilians. In this review, we will be tallying up the biggest US Air Force bases by troop count. To that end, the ranking below is based on the number of active-duty personnel stationed at each of these air bases.
5
Travis Air Force Base
7,500+ Troops
The ‘Gateway to the Pacific,’ Travis AFB, is the busiest logistics hub in the USAF. Located in Fairfield, California, it serves as a massive logistics and refueling hub for operations across the Pacific Ocean. Travis is the only Air Force base that hosts three different heavy-lift and refueling airframes simultaneously. On top of the roughly 7,500 active duty troops, the base is supported by more than 2,500 reservists from the 349th Air Mobility Wing as well as over 2,500 civilian employees.
The 60th Air Mobility Wing employs the C-5M Super Galaxy, the biggest aircraft in the United States Air Force inventory, and the C-17 Globemaster III to move personnel and equipment around the world quickly. Travis is also a main center for the KC-46 Pegasus, having just received the Air Force’s 100th and the base’s 22nd KC-46.
As the main West Coast terminal for aeromedical evacuation missions returning patients from the Pacific, the base handles more passengers and cargo than any other military terminal in the United States. The largest medical facility in the Air Force on the West Coast is the David Grant USAF Medical Center. Travis’s troops and families, along with the events it hosts, boost the local economy by more than $4.5 million every year.
4
Nellis Air Force Base
11,500+ Troops
Located just outside of Las Vegas, Nevada, Nellis AFB is home to some of the largest simulated air fights in the world on its massive test range complex. Supporting a large workforce and a high volume of foreign exercises, it is one of the busiest air combat sites in the world. The US Air Force’s most advanced air combat training facility is Nellis, where squadrons from the Navy, Marines, and partner countries from all over the world participate in combined exercises.
In addition to the active duty personal there are over 3,000 civilians in contractors, bringing the total workforce of the base to roughly 15,000-strong. The Nellis AFB itself covers 14,000 acres, but the Air Force Warfare Center manages the Nevada Test and Training Range, which spans 2.9 million acres of land and 12,000 square miles of restricted airspace.
Nellis is the primary hub for Lockheed Martin F-35 Lightning II and F-22 Raptor operational testing, focusing on integrating these platforms into ‘high-end’ multi-domain combat scenarios. The 57th Wing boasts one of the most diverse unit missions in the Air Force with the Air Force Weapons School, the ‘Thunderbirds’ Air Force Air Demonstration Squadron, and the 64th Aggressor Squadron all under the same ‘roof.’
Nellis is famed for its series of ‘Flag’ exercises, which cycle through annually. Red Flag is the top training event every year, with the 2026 installment including approximately 3,000 troops and units from the US, the United Kingdom’s Royal Air Force, and the Royal Australian Air Force. There is also Bamboo Eagle 26-1, a new large-scale exercise focused on Agile Combat Employment and decentralized command and control, which runs concurrently with Red Flag.
3
Eglin Air Force Base
13,000+ Troops
Eglin is a multi-service ‘superbase’ that houses over 50 tenant units from almost every major command. The 33rd Fighter Wing is a key F-35 training unit, preparing pilots and maintainers to fly three types of the fifth-generation stealth fighter for the Air Force, Navy, and Marine Corps. The location also houses three unique special forces groups from the Army and Navy, and it is the USAF’s main location for the development, procurement, and testing of all non-nuclear, air-delivered weapons.
The 96th Test Wing, which serves as the base’s host unit, is in charge of nearly 120,000 square miles of overwater airspace known as the Eglin Gulf Test Range. In the meantime, all of the fighters, bombers, and drones in the Air Force inventory are operationally tested and evaluated by the 53rd Wing. All branches of the military receive EOD technician training from the Naval School of Explosive Ordnance Disposal.
The demanding ‘swamp phase,’ the last phase of the US Army Ranger School, is led by the 6th Ranger Training Battalion. The 7th Special Forces Group, on the other hand, is a current operational unit with a focus on missions across Latin America. In addition to having one of the biggest concentrations of fighter jets in the USAF, with just under 100 on any given day, Eglin is one of the few military stations with a commercial airport on-site: Destin-Fort Walton Beach Airport (VPS).
Large areas of the old-growth long-leaf pine reservation managed by Eglin are open to the public for hunting, fishing, and hiking, as long as visitors have an Eglin recreational permit. The facility oversees the world’s largest contiguous pine acreage and is home to a number of uncommon animal species.
What US Air Force Bases Have F-35s?
Ten air force bases are listed as bases for the USAF F-35A, although they can operate from many more bases.
2
Ramstein Airbase
16,000+ Troops
Ramstein serves as the main stopover hub for people and goods traveling from the US to the Middle East, Africa, and Europe. Because of this concentration of resources, the Ukraine Defense Contact Group was established on-site as an alliance of more than 50 nations that coordinate military assistance to Ukraine. Over 97% of patient movements in those areas are supported by Ramstein, which also acts as the main medical evacuation hub for three combatant commands.
Ramstein Air Base in Germany, nicknamed the ‘Global Gateway,’ is the largest US military facility outside of the United States. It houses the headquarters of the United States Air Forces in Europe and Africa, as well as NATO Allied Air Command and the headquarters of the Third Air Force. The base’s principal host unit is the 86th Airlift Wing, which operates a fleet of C-130J Super Hercules, C-21, and C-37 aircraft.
Ramstein is part of the Kaiserslautern Military Community, which serves some 54,000 Americans. The base has such a big presence in southwest Germany that it is commonly referred to as ‘Little America’, with amenities like schools, retail malls, and other services to serve the world’s greatest concentration of Americans overseas.
The lack of help for Ukraine’s defense against the Russian invasion under President Donald Trump, which has continued since 2022, has made Ramstein’s involvement in the fight more insignificant. Instead, the United Kingdom and Germany have taken the initiative to convene the group, and the February 2026 summit took place at NATO Headquarters in Brussels rather than Ramstein.
Top 5: These Are The Largest Air Force Bases By Area
All five bases are operated by the United States Air Force.
1
Joint Base San Antonio
32,000+ Troops
This sprawling base complex, often referred to as ‘Military City USA,’ comprises the Lackland Basic Military Training facility, which conducts all basic Air Force training, the Randolph Airbase, two Army forts, and the biggest hospital in the Department of Defense. JBSA provides an estimated $55 billion to the Texas economy each year. JBSA covers nearly 30,000 acres when all of its facilities are combined.
Known as the ‘Gateway to the Air Force,’ Lackland is where all enlisted members of the United States Air Force begin their adventure. The complex is especially special since it houses the Army’s North and South Command, high-level strategic headquarters, and basic training for medics and other personnel all within the same footprint. JBSA oversees more historic structures than Williamsburg, Virginia, and more than 35 million square feet of facilities.
Every year, the 37th Training Wing at JBSA-Lackland trains over 36,000 recruits to become USAF aviators and Space Force Guardians through an arduous eight-week program. Each year, the 12th Flying Training Wing at Randolph teaches roughly 850 teacher pilots, 350 combat systems officers, and 500 remotely piloted aircraft pilots and sensor operators.
On December 5, 2025, the first Boeing-Saab T-7A Red Hawk advanced trainer landed at Joint Base San Antonio-Randolph, ushering in a new era for the Air Education and Training Command. The T-7A is named after the Tuskegee aviators and was designed specifically to educate aircrew for the fifth and sixth-generation platforms that are becoming the USAF’s new standards.








