Many of today's collectors started collecting U.S. postage stamps as kids, often with a parent or family member. The US stamp collecting market has weakened in recent years, however, with many stamps and even entire collections trading below face value (so many copies of common stamps were printed that there's not enough demand to warrant a premium).

Rare or unusual U.S. stamps, however, are another story - there's a robust market for those, and some specimens can be worth thousands of dollars or more.

There are many ways to approach collecting U.S. stamps. Some collectors focus on a specific time period, like the 19th century. Others choose specific themes like airmail stamps or duck stamps. Some focus on specific formats like sheets, plate blocks, coils, or booklets. There are also a large number of collectors who focus on first day covers - stamps that were affixed to a special envelope and cancelled on the first day of issue.

As with many collectibles, rarity and condition are two key determinants of value. U.S. stamps can be either unused (never cancelled) or used, and there are collectors who focus on both varieties.


Best of the Web (“Hall of Fame”)

1847USA

1847USA

Bob Allen's beautiful and well organized catalog of US stamps from 1847 to 1970 is a fantastic resource for all US … [read review or visit site]

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The Stamp Collecting Round-up

Don Schilling's long-running, in-depth blog on stamp collecting and postal operations. Schilling stays up on all th… [read review or visit site]

National Postal Museum

National Postal Museum

If you're into postal history or collectibles, check out the Smithsonian's National Postal Museum. This extensive s… [read review or visit site]

Post Office in Paradise

Post Office in Paradise

Post Office in Paradise showcases Hawaiian postal history from the years before Hawaii became a part of the United … [read review or visit site]

Private Die Proprietary Stamps

Private Die Proprietary Stamps

Bob Hohertz's impressive database of U.S. Private Die Proprietary stamps from the Civil War and Spanish American Wa… [read review or visit site]

R. A. Siegel Auction Galleries

R. A. Siegel Auction Galleries

This auction house site offers an extensive online database of US stamp information. Includes PDF catalogs of past … [read review or visit site]

Alphabetilately

Alphabetilately

First shown in 2008 to celebrate the Smithsonian National Postal Museum's 15th anniversary, Alphabetilately is esse… [read review or visit site]



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1869 Mint Pictorial Set Complete To 90c With 15c Tyi #118 Cat $57,050Us 1902 Regular Issues Nh Thru $5 #313 Cat $13,085Ckstamps : Us Old Stamps Scott#122 90c Pictorial 1869 Lincoln Used 2014 Cv$2100United States Regular $1 Scott 311 . Never Hinged. Sc $1900United States Panama-pacific 10c Scott 404 . Never Hinged. Sc $1700U.s. Unused Og Zeppelin C13 C14 C15 Airmail Stamps Set Of 3 65c 1.30 2.60United States Bluish Paper 13c Scott 365 . Never Hinged. Sc $6000Us Stamp:#505 5c Rose "error" 1917-19 Mh/og(5c Mnh) Stamp Blk Of 6Ckstamps: Us Stamp Scott#293 $2 Trans-mississippi 1898 Unused Rg 2014 Cv$1900/ogUs 1890 - 93 Complete Nh Set With 2c Lake # 219d And 90c #229 Cat $4,600Ckstamps : Us Stamps Scott#c15 $2.6 Graf Zeppelin Airmail Mint Nh Og 2014 Cv$975Ckstamps : Us Stamps Scott#c14 $1.3 Graf Zeppelin Airmail Mint Nh Og 2014 Cv$650United States Bureau 50c Scott 260 . Never Hinged. Sc $1500U.s. #459 Choice Mint Vf Nh - 1914 2c Carmine, Imperf Coil ($275)United States Franklin $1 Scott 460 . Lightly Hinged. Sc $675United States Franklin $1 Scott 460 . Never Hinged. Sc $1500Hawaii, #10s A, Type A., Line Thrugh "honolulu" Variety, Unused. HawaiianUnited States Portrait 5c Scott 67 . Lightly Hinged. Sc $275001847 Us Imperf. 5c Sc 1 . Lightly Hinged. Cat $6750U.s. #122 Used - 1869 90c Carmine & Black ($2,100)Us Stamp:#480 $5 Green 1916-17 Perf. 10 Mh/og StampScott#480 $5 Marshall 1917 Mint Lh Og1914-15 United States Panama-pacific. 10c Scott 404. Never Hinged. Cat $1700United States Zeppelin $1.30 Scott C14 . Never Hinged. Sc $650=wow= Us# 241, Used $1.00 Columbian, F/vf, Cv $650.00, Free S&h U.s. #c14 Choice Mint Vf W/cert - 1930 $1.30 Graf Zeppelin ($400)Us Stamp:#csa5 10c Rose 1862 Confederate Used Stamp.Nystamps Us Stamp # 467 Mint Og $483 One Error In Middle WashingtonUs Stamp:#csa 2 10c 1861 Confederate State Stamp Mh/og Stamp1873, Usa, 6 C Lincoln #159, Fancy + Jumbo + Imprint, Extremely Unusual1870-71 Us Banknote. 90c Sc 155 . Lightly Hinged. Cat $5000United States Zeppelin 65c Scott C13 . Never Hinged. Sc $275Us Stamp:#c15 $2.60 Blue 1930 Graf Zeppelin Air Mail Mh/og Stamp Us Stamp:#243 $3 Yellow Green 1893 Columbian Issue Unused Stamp Us Stamp:#39 90c Blue 1851-57 Unused Stamp Scott 2013 United States Us Specialized Stamp Catalogue In Color Super*no=reservCkstamps : Us Stamps Scott#c13 65c Graf Zeppelin Airmail Mint Nh Og 2014 Cv$275Scott 292 The $ 1.00 Trans-mississippi Exposition, Mint Hinged, Space FillerUnited States Franklin 50c Scott 440 . Never Hinged. Sc $1050Drbobstamps Us Scott 404 Mint Og Nh Sound Scarce Stamp1930 Us Zeppelin. $2.60 Sc C15 . Never Hinged. Cat $975United States Zeppelin $2.60 Scott C15 . Never Hinged. Sc $975United States F. Grill 10c Scott 96 . Lightly Hinged. Sc $2750United States Pictorial 15c Scott 129 . Hinged. Sc $1350Ckstamps: Us Old Stamps Scott#67 5c Buff Jefferson 1861 Used 2014 Catalog V$1000United States Type Iii 10c Scott 15 . Hinged. Sc $5000United States Marshall $5 Scott 263 . Used. Sc $2750Us Stamp:#2 10c Black Washington Imperf 1847 Stamp Full Margins1918 Us Frankin. $2 Sc 523 . Hinged. Cat $525United States Coil 2c Scott 353 . Never Hinged. Sc $1750Nystamps Us Shanghai China Stamp # K15 Mint Og $575Us Stamp:#369 2c Carmine 1909 Lincoln "bluish Paper" Mh/og Stamp United States Bluish Paper 6c Scott 362 . Never Hinged. Sc $30001902-03 Us Regular. 50c Sc 310 . Never Hinged. Cat $12001895 Us Perry. $1 Sc 276 . Never Hinged. Cat $18001935 Us Duck. $1 Sc Rw2 . Never Hinged. Cat $7501869 Us Pictorial. 90c Sc 122 . Used. Cat $2100#388 2c Washington....vf+ Og Smhr- Coil Cv$1300U.s. #241 Mint - 1893 $1.00 Columbian ($1,100)United States Panama-pacific 10c Scott 400 . Never Hinged. Sc $270