The Albany County, New York, Department of Public Works maintains nearly 290miles of roads and 78 bridges as county routes. All county routes in Albany County are signed with a blue pentagonal shield, the Manual on Uniform Traffic Control Devices' standard shield for county routes. Although quite a few county routes are in more than one town, the route number reflects the town that the largest portion of the route is in. Two county routes pass through the western portion of the city of Albany. Parts of New York State Route 32 (NY 32) and NY 155 are owned and maintained by Albany County and are thus co-signed as state touring routes and as Albany County routes.
Routes numbered 1 through 14 are predominantly in the town of Berne.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 11.25miles | NY 143 in Westerlo | Switz Kill Road | CR 254 in Berne | |||
| 4.77miles | CR 1 in Westerlo | Cole Hill Road | NY 443 in Berne | |||
| 2.61miles | CR 1 | Willsie Road in Berne | CR 2 | |||
| 5.7miles | NY 85 in Rensselaerville | Ravine Road | CR 1 in Berne | |||
| 3.79miles | NY 443 | Bradt Hollow and Canaday Hill Roads in Berne | NY 443 | |||
| 5miles | CR 353 in Rensselaerville | Huntersland Road | Schoharie County line in Berne (becomes CR 21) | |||
| 1.47miles | NY 85 | Cass Hill and North Roads in Berne | NY 85 | |||
| 2.42miles | CR 10 in Rensselaerville | Garvey Hill and Rapp Roads | CR 10 in Berne | |||
| 4.68miles | CR 6 | Sickle Hill Road in Berne | CR 1 | |||
| 3.45miles | NY 85 in Westerlo | Joslyn School Road | NY 443 in Berne |
Routes numbered 50 through 55 are predominantly in the town of Bethlehem.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 1.68miles | NY 32 / NY 910A | Elm Avenue Extension and Elm and Cherry Avenues in Bethlehem | NY 140 | Overlaps with NY 32 for 0.8miles | ||
| 2.64miles | NY 396 | South Albany and Old School Roads in Bethlehem | CR 55 | Bridge over Selkirk railroad yard has been closed due to deterioration | ||
| 1.59miles | CR 55 | Jericho Road in Bethlehem | US 9W | |||
| 0.91miles | CR 102 | Bell Crossing Road in Bethlehem | CR 53 | |||
| 3.66miles | NY 32 | Creble Road in Bethlehem | US 9W |
Routes numbered 101 through 112 are predominantly in the town of Coeymans.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 3.57miles | US 9W in Coeymans | Undercliff Road and South Street | NY 396 in Bethlehem | |||
| 8.47miles | NY 143 in Coeymans | Star and Old Quarry Roads | NY 32 in New Scotland | |||
| 4.35miles | NY 143 | Blodgett Hill Road in Coeymans | NY 396 / CR 301 | |||
| 1.38miles | NY 143 | Tompkins Road in Coeymans | CR 102 | |||
| 2.45miles | NY 32 | Copeland Hill Road in Coeymans | CR 301 | |||
| 3.47miles | NY 32 in Coeymans | Lawson Lake Road | CR 301 in New Scotland | |||
| 4.05miles | Greene County line in Westerlo (becomes CR 38) | Alcove Road | NY 143 in Coeymans | |||
| 0.71miles | Greene County line | Staco Road in Coeymans | CR 111 |
Routes numbered 151 through 163 are predominantly in the town of Colonie.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 5.91miles | CR 155 | Albany Shaker Road and Dalessondro Boulevard in Colonie | NY 7 | Overlaps with NY 155 from CR 153 to CR 157 at Albany International Airport | ||
| 2.87miles | US 9 | Old Niskayuna Road in Colonie | NY 155 | |||
| 0.79miles | NY 155 / CR 151 at I-87 exits 3&4 near Albany International Airport | Wolf Road in Colonie | NY 155 (Watervliet Shaker Road) | Entire length overlaps with NY 155; informally called "Old Wolf Road" to distinguish it from the state-maintained section between NY 5 and CR 151 | ||
| 2.98miles | NY 5 | Osborne and Sand Creek Roads in Colonie | US 9 / NY 378 | |||
| 1.22miles | Albany city line | Everett Rd in Colonie | CR 151 | |||
| 1.94miles | US 20 in Guilderland | Fuller Road | NY 5 in Colonie | |||
| 5.65miles | US 20 / NY 155 in Guilderland | Karner, New Karner, and Watervliet Shaker Roads | NY 155 / CR 151 at Albany International Airport | Entire length overlaps with NY 155 | ||
| 0.98miles | Dead end at Albany International Airport | Sicker Road in Colonie | CR 151 | |||
| 0.37miles | Airline Drive | Heritage Lane in Colonie | NY 155 / CR 151 | Formerly part of CR 151 and CR 157 | ||
| 0.5miles | Dead end at Albany International Airport | Old Albany Shaker Road in Colonie | Dead end | Formerly part of CR 151 |
Routes numbered 201 through 209A are predominantly in the town of Guilderland.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 5.19miles | CR 306 in Voorheesville | North Main Street and Grant Hill, Stone, and Depot Roads | NY 146 in Guilderland | Depot Road was named after a former Department of Defense depot, now the Northeast Industrial Park | ||
| 3.77miles | NY 156 in New Scotland | Meadowdale and School Roads | NY 146 in Guilderland | |||
| 3.65miles | CR 306 in New Scotland | Normans Kill and Johnston Roads | US 20 in Guilderland | |||
| 2.6miles | Albany city line in Bethlehem | Russell, Krumkill, and Schoolhouse Roads | US 20 in Guilderland | |||
| 1.74miles | NY 156 in Voorheesville | School Road | CR 201 in Guilderland |
Routes numbered 251 through 262 are predominantly in the town of Knox.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 9.39miles | NY 157A in Berne | Knox Cave Road | Schenectady County line in Knox (becomes CR 131) | |||
| 7.69miles | CR 252 in Knox | Bozen Kill Road and Maple Avenue Extension | NY 146 in Altamont | |||
| 1.92miles | NY 443 in Knox | Rock Road | NY 156 in Knox | |||
| 4.1miles | NY 156 | Pleasant Valley Road in Knox | NY 156 | |||
| 2.18miles | Schoharie County line (becomes CR 24) | Knox–Gallupville Road in Knox | NY 156 | |||
| 1.65miles | NY 157 | Ketcham Road in Knox | NY 157 | |||
| 3.25miles | CR 255 | Beebe Road in Knox | CR 252 | |||
| 1.69miles | NY 156 | Witter Road in Knox | NY 146 | |||
| 1.25miles | NY 146 | Bell Road in Knox | CR 253 | |||
| 4.49miles | CR 255 | Gage and Middle Roads in Knox | NY 146 |
George Street, a 0.73miles street in the village of Green Island, is designated as County Route 278. Maintenance of the route is shared between the county and the village as the village is responsible for everyday maintenance while the county is responsible for reconstruction when it is needed. It is not signed as a county route.
Routes numbered 301 through 312 are predominantly in the town of New Scotland.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 5.91miles | NY 443 in New Scotland | Tarrytown and Cedar Grove Roads | NY 396 / CR 103 in Coeymans | Part of Cedar Grove Road was once known as Monkey Run Road | ||
| 5.48miles | NY 443 in Berne | Pinnacle and Beaver Dam Roads | NY 157 / NY 157A in New Scotland | |||
| 4.91miles | NY 85A in Voorheesville | Voorheesville Avenue and Normans Kill, Krum Kill, and Font Grove Roads | NY 85 in Bethlehem | |||
| 2.3miles | NY 85A | Picard Road in New Scotland | NY 156 | CR 307 at the intersection of NY 156 | ||
| 2.35miles | NY 32 | Unionville – Feura Bush Road in New Scotland | NY 443 | |||
| 2.4miles | NY 443 | New Scotland South Road | NY 85 | |||
| 1.68miles | NY 157 | Beaver Dam Road in New Scotland | CR 303 | |||
| 5.73miles | NY 143 in Westerlo | Clarksville South Road | NY 443 in New Scotland | |||
| 0.06miles | NY 143 | Part of wye connection in Westerlo | CR 312 (segment 1) |
Routes numbered 351 through 362 are predominantly in the town of Rensselaerville.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 6.81miles | CR 352 | Medusa Road in Rensselaerville | NY 85 / CR 353 | |||
| 5.83miles | NY 145 | Fox Creek Road in Rensselaerville | CR 351 | |||
| 0.05miles | NY 145 | Part of wye connection in Rensselaerville | CR 352 (segment 1) | |||
| 4.7miles | Schoharie County line (becomes CR 19A) | Delaware Tpke in Rensselaerville | NY 85 at the Tenmile Creek bridge | |||
| 1.83miles | Greene County line (becomes CR 36) | Potter Hollow Road in Rensselaerville | NY 910G | |||
| 2.28miles | CR 352 / CR 360 | Fox Creek Road in Rensselaerville | CR 351 | |||
| 4.25miles | CR 352 | Baitholtz, Cheese Hill, and Kenyon Roads in Rensselaerville | CR 353 | |||
| 1.7miles | CR 358 | Kropp Road in Rensselaerville | CR 353 | |||
| 3.6miles | CR 352 / CR 357 | Crow Hill Road in Rensselaerville | CR 359 | |||
| 3.66miles | CR 351 | Town Line and Albany Hill Roads in Rensselaerville | CR 351 | |||
| 2.09miles | Schoharie County line (becomes CR 61) | Scott Patent Road in Rensselaerville | CR 354 |
Routes numbered 401 through 414 are predominantly in the town of Westerlo.
| Route | Length (mi) | Length (km) | From | Via | To | Notes |
|---|---|---|---|---|---|---|
| 5.19miles | CR 405 | Westerlo – South Westerlo Road in Westerlo | NY 143 | |||
| CR 401A | 0.4miles | CR 401 | Old CR 401 in Westerlo | CR 401 | Unsigned | |
| 5.41miles | CR 351 in Rensselaerville | Westerlo–Medusa Road | CR 1 in Westerlo | |||
| 0.1miles | CR 351 | North leg of wye connection in Rensselaerville | CR 402 (segment 1) | |||
| 6.35miles | CR 351 in Rensselaerville | South Westerlo – Medusa Road | CR 405 in Westerlo | |||
| 0.37miles | CR 403 (segment 1) | Marks Road in Rensselaerville | Greene County line (becomes CR 75) | |||
| 4.44miles | CR 402 | Bear Swamp Road in Westerlo | NY 32 | |||
| 5.4miles | CR 402 | Sunset Hill Road in Westerlo | Greene County line (becomes CR 38) | |||
| 1.95miles | CR 401 | Kuster Road in Westerlo | NY 32 | |||
| 5.93miles | CR 402 in Westerlo | Fancher Road | CR 1 in Berne | |||
| 2.15miles | Greene County line (becomes CR 50) | McNaughtons Road in Westerlo | CR 405 | |||
| 2.21miles | CR 402 | Thayers Corners Road in Westerlo | CR 401 | |||
| 4.57miles | Greene County line | Newry Road in Westerlo | NY 32 / NY 143 | |||
| 0.96miles | NY 32 / NY 143 | Newry Road in Westerlo | CR 312 | |||
| 5.37miles | NY 143 in Westerlo | Airport Road | CR 11 in Berne | |||
| 5.73miles | CR 361 | Upper and Lower Chapel Hill Roads in Westerlo | CR 402 | |||
| 1.22miles | CR 405 | Horseshoe Bend Road in Westerlo | CR 401 |