Looks like we need a bit more information.
Please clarify your search for “Annandale”:

Best Matches	Country
Annandale, Virginia Airport: DCA-Ronald Reagan Washington National, IAD-Washington Dulles Intl. Which airport do you prefer? Washington, DC, United States (DCA-Ronald Reagan Washington National) Washington, DC, United States (IAD-Washington Dulles Intl.) x	United States of America
Annandale, Minnesota Airport: MSP-All Airports	United States of America
Annandale Falls, St. George's Airport: GND-Point Salines Intl.	Grenada
Annandale Golf Club, Madison, Mississippi Airport: JAN-Evers Intl.	United States of America

Annandale, Virginia