Best SEO and internet marketing services in Rensselaer County NY. Rensselaer County zip codes - 12018, 12022, 12024, 12033, 12040, 12052, 12061, 12063, 12082, 12089, 12090, 12094, 12121, 12123, 12133, 12138, 12140, 12144, 12153, 12154, 12169, 12180, 12181, 12182, 12185, 12196, 12198