Stamps
- 141
- Long Beach Stamp Club
- Group of collectors south of Los Angeles, California, meet twice monthly and archive club newsletters on their website.
- 142
- Manchester Philatelic Society
- Club sponsors annual MANPEX show, publishes a newsletter 10 times a year, and holds meetings twice a month for members.
- 144
- Metro Louisville Stamp Society
- Club located in Northern Kentucky holds meetings twice monthly and sponsors the annual LOUIPEX show.
- 145
- Motor City Stamp and Cover Club
- Collectors' group in Detroit, Michigan, sponsors the annual MOTOPEX show and holds monthly meetings.
- 146
- Nashville Philatelic Society
- Holding meetings twice a month and sponsoring an annual stamp show, this club serves collectors in Tennessee.
- 147
- Nevada Stamp Study Society
- In addition to conducting bimonthly meetings, this Reno-based club sponsors an annual stamp and cover show, provides online archives of its monthly newsletter, and maintains a reference library for members.
- 148
- Northeast Pennsylvania Philatelic Society
- Club serves collectors with a wide range of philatelic interests in the Scranton and Wilkes-Barre, Pennsylvania, area. The organization publishes a monthly newsletter for members, and holds meetings twice a month.
- 149
- Northwest Stamp Club
- Meeting in the suburbs northwest of Chicago, Illinois, this group of collectors conducts auctions and presents slideshows for members.
- 150
- Oklahoma City Stamp Club
- Group sponsors meetings twice a month and helps organize the annual OKPEX show. Older newsletters are archived on the club's website.
- 151
- Omaha Philatelic Society
- Group hosts the annual Omaha Stamp Show and maintains a reference library for members.
- 152
- Orange County Philatelic Society
- Collectors' group in Anaheim, California, area meets monthly. In addition to providing educational programming, the club organizes auctions for its members.
- 153
- Oregon Stamp Society
- This organization sponsors bimonthly meetings held in a clubhouse that it owns, publishes a regular member newsletter, and sponsors an annual show.
- 154
- Ottawa Philatelic Society
- Based in Ontario, Canada, this club holds weekly meetings except during the summer, sponsors the ORAPEX and MINIEX shows, and organizes educational presentations and competitions for members.
- 155
- Pascack Stamp Club
- Serving collectors in northern New Jersey's Bergen County, this club sponsors bimonthly meetings and member auctions.
- 156
- Philatelic Association of NSW
- Group represents local stamp clubs in New South Wales, Australia, by providing information about affiliates, publications, and auctions.
- 157
- Pinner Philatelic Society
- Club serves collectors in Northwest London, England, and publishes a regular bulletin for members.