Washington County Airport (8WC), Missouri
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Washington County Airport (8WC) is a public-use general aviation field in Potosi, Missouri, serving light business and personal aircraft traffic in the region south of St. Louis. The airport has a single paved runway and is attended on weekdays, with fuel available at all hours from the south apron. Pilots operating here should note the nearby correctional facility overflight restriction and the absence of an operating control tower.
Runways
Washington County Airport has one paved runway, 02/20, 4,000 ft long and 60 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Washington County Airport has Jet A+ and 100LL available on the field. Fueling is available from 8am to 4:30pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Washington County Airport does not clear customs. The nearest port of entry is Spirit of Saint Louis (KSUS), 44 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Washington County Airport recorded 11 business aviation movements in 2025. Traffic peaks in November. Business aviation traffic at 8WC was concentrated in the last quarter of the year, with October through December accounting for all recorded operations in the monthly data.
Business jet movements, FAA TFMSC count. Peak month November, 5 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Weather station is 4.8 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Washington County Airport has published operating constraints in three categories: runway notes, environmental and other notes.
Medium intensity runway lighting for Runway 02/20 is pilot-controlled via CTAF.
Use right traffic for Runway 02; do not overfly the prison area.
Wildlife is present on and in the vicinity of the airport.
Self-service 100LL and Jet-A fuel are available 24 hours a day, located at the south apron.
For clearance delivery, contact Kansas City Air Route Traffic Control Center.
Source: FAA Chart Supplement.
Nearby airfields
Washington County Airport has five airfields within 42 NM. The closest is Farmington Regional (KFAM), 17.56 NM southeast.
Part of the St. Louis area.
Source: Skystar calculation from official coordinates.
Skystar at 8WC
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$1,200.00 catering order at 8WC.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
Is there fuel available at 8WC after hours?
Yes, 100LL and Jet-A fuel are available on a self-service basis around the clock at Washington County Airport, located on the south apron. This is separate from the airport's staffed attendance schedule, which runs weekdays from 0800 to 1630 local time. Pilots arriving outside those hours can still fuel up without needing to coordinate with airport personnel.
Does Washington County Airport have a control tower?
No, 8WC is a non-towered airport, so arriving and departing traffic is managed using the common traffic advisory frequency. Runway lighting on 02/20 is pilot-controlled and activated via CTAF rather than by any tower or attendant. Pilots should self-announce intentions and coordinate visually with other traffic in the pattern.
Are there any airspace restrictions near KSUS's alternate customs airport at 8WC?
Washington County Airport itself has no onsite customs processing; the nearest customs facility is KSUS, located about 44 nautical miles away. Locally, pilots using Runway 02 are directed to fly right traffic, and overflight of a nearby prison area is prohibited. These are the operational constraints noted for the field rather than any customs-related restriction on the airport itself.
What is the runway configuration at 8WC?
Washington County Airport has one paved runway, 02/20, measuring 4,000 feet long and 60 feet wide with an asphalt surface. This is the airport's only runway, and it serves as the maximum paved length available at the field. Wildlife activity has been reported on and in the vicinity of the airport, which pilots should factor into their approach and departure planning.