A
- Abbotts
- Abell Corners
- Abrams Landing
- Accord
- Accord Alligerville
- Acidalia
- Acra
- Adams
- Adams Basin
- Adams Center
- Adams Corner
- Adams Corners
- Adams Cove
- Adamsville
- Addison
- Adelphi
- Aden
- Adirondack
- Adrian
- Afton
- Agnes Corners
- Aiden Lair
- Airmont
- Akins Corners
- Akron
- Albany
- Albertson
- Albion
- Albion Center
- Alburg
- Alcove
- Alden
- Alder Bend
- Alder Brook
- Alder Creek
- Aldrich
- Alene
- Alewife Brook Landing
- Alexander
- Alexandria Bay
- Alexandria Center
- Alfred
- Alice
- Allaben
- Allard Corners
- Allegany
- Allen Center
- Allendale
- Allentown
- Allentown
- Alloway
- Alma
- Almond
- Aloquin
- Alpina
- Alpine
- Alsen
- Altamont
- Altay
- Altmar
- Alton
- Altona
- Alverson
- Amagansett
- Amawalk
- Amber
- Amblers Crossing
- Amboy
- Amenia
- Amenia Union
- Ames
- Amherst
- Amity
- Amityville
- Amsterdam
- Anaquassacook
- Ancramdale
- Anderson
- Andes
- Andover
- Angelica
- Angells Corner
- Angola
- Angola on the Lake
- Angus
- Annadale
- Annsville
- Antwerp
- Apalachin
- Apaquogue
- Apex
- Applegate Corner
- Appleton
- Apulia
- Aquebogue
- Aquetuck
- Arabia
- Arabia
- Arcade
- Archdale
- Archville
- Arctic
- Arden
- Ardonia
- Ardsley
- Arena
- Argusville
- Argyle
- Arietta
- Aristotle
- Arkport
- Arkville
- Arkwright
- Arlington
- Armonk
- Armor
- Arnett
- Arnolds Mill
- Arrochar
- Arshamonaque
- Arthur
- Arthursburg
- Art Village
- Arverne
- Asbury
- Asbury
- Ashantee
- Asharoken
- Ashford
- Ash Grove
- Ashland
- Ashokan
- Ashwood
- Assembly Park
- Astoria
- Athens
- Athol
- Athol Springs
- Atlanta
- Atlantic Beach
- Attica
- Attlebury
- Atwaters
- Atwell
- Atwell Corners
- Atwood
- Auburn
- Augusta
- Auriesville
- Aurora
- Ausable Chasm
- Au Sable Forks
- Austerlitz
- Austin
- Averill Park
- Averys Place
- Averyville
- Avoca
- Avon
- Awosting
- Axeville
- Axton Landing