Ringoes is an unincorporated area located within East Amwell Township, in Hunterdon County, New Jersey. The community is served by the United States Postal Service as ZIP Code 08551. As of the United States 2000 Census, the population for ZIP Code Tabulation Area 08551 was 5,082. Ringoes is the oldest known settlement in Hunterdon County. The village grew up around John Ringo's Tavern on Route 179 on the Old York Road. The tavern was the site for many meetings of the Hunterdon Chapter of the Sons of Liberty formed in 1766.