A
- Abbott
- Abingdon
- Ace Mobile Home Park
- Ackley
- Ackworth
- Adair
- Adaville
- Adaza
- Adel
- Adelphi
- Afton
- Agency
- Ainsworth
- Akron
- Albany
- Albaton
- Albert City
- Albia
- Albion
- Alburnett
- Alden
- Alexander
- Alfon
- Algona
- Alice
- Alleman
- Allen
- Allendorf
- Allerton
- Allison
- Almont
- Almoral
- Alpha
- Alta
- Alta Vista
- Alton
- Altoona
- Alvord
- Amana
- Amber
- Ambrose
- Ames
- Amish
- Amund
- Anamosa
- Anderson
- Andover
- Andrew
- Andrews
- Angus
- Anita
- Ankeny
- Anthon
- Aplington
- Arbor Hill
- Arcadia
- Archer
- Ardon
- Aredale
- Argand
- Argo
- Argyle
- Arion
- Arispe
- Arlington
- Armour
- Armstrong
- Arnold
- Arnolds Park
- Artesian
- Arthur
- Asbury
- Ascot
- Ash Grove
- Ashland
- Ashton
- Aspinwall
- Astor
- Atalissa
- Athelstan
- Atkins
- Atlantic
- Attica
- Atwood
- Auburn
- Audubon
- Augusta
- Aurelia
- Aureola
- Aurora
- Austinville
- Avery
- Avoca
- Avon
- Avon Lake
- Ayresville
- Ayrshire
