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]

The Stamp Collecting Round-up

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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Antique Civil War Confederate 5-cent Jefferson Davis 20-cent Washington StampsNystamps Us Stamp # 245 Used $1300Drbobstamps Us Very High Catalogue Of Classics Including Grills To #101Drbobstamps Us Scott #292 Mint Og Hinged Transmississippi StampCkstamps : Us Stamps Scott #315 5c Imperf. Lincoln 1908 Mint H/og 2014 Cv$350Confederate States Of America & Other Old Bob Us Stamps Mounted On PagesUs - # 245 - Five Dollar Columbian - UnusedUs - # 122 - 90 Cent Lincoln - UsedCkstamps : Us Stamps Scott #292 $1 Trans-mississippi 1898 Unused Rg Cv$1100/ogNystamps Us Stamp # 400a Mint Og Nh $400Ckstamps: Us Old Stamps Scott #2 10c Imperf. Washington 1847 Used 2014 Cv $1000Nystamps Us Stamp # 2 Used $600 Pen CancelCkstamps: Us Stamps Scott #19b 1c Blue Type Ic Franklin 1857 Used Cv$2500 W/certDrbobstamps Us Scott #242 Mint Og Hinged Sound $2.00 Columbian StampUs, 100's Of Revenue & Other Stamps Hinged On PagesCkstamps : Us Stamps Scott #27 5c Brick Red 1858 Used Cv$1650 Grade 80/85w/cert.Nystamps Us Stamp # 630 Mint Og Nh $600Nystamps Us Stamp # 293 Used $1100Nystamps Us Stamp # 130 Mint Og H $2100Ckstamps : Us Stamps Scott #c15 $2.6 Graf Zeppelin Airmail Mint H/og 2014 Cv$575Us - # C14 - One Dollar Thirty Cent Zeppelin - UnusedUs, Includes Revenues, 100's Of Old Stamps Hinged On Pages1902-03 Us Regular $5 Sc 313 Nh Cat $6500Us $1 Franklin 1915 Sc 460 Nh Cat Value $1500Us, Incl Bob, Wonderful Selection Of Stamps In A Lighthouse StockbookHawaii 1850's A Nice Group Of 20 Early Classic Looking Stamps To 5c Sg??Nystamps Us Stamp # 101 Used $2250 GrillNystamps Us Stamp # 293 Mint Og H $1900 Fixed Perf1893 Us Columbian $3 Sc 243 H Cat $16001916-17 Us Franklin $1 Sc 478 Nh Cat $1450Us, Incl Mnh 834 & 1053, Excellent Mint Plate Blocks & Other Stamps #1 Used Light Cancel 4 Margins Vf+United States 1930 $2.60 Blue Graf Zeppelin Mint Stuck Down Stamp Sga689 CatUs - # 244 - Four Dollar Columbian - UnusedUs Stamp:#122 90c Carmine & Black 18​69 Pictorial Issue Used StampUs $1 Franklin 1916-17 Sc 478 Nh Cat Value $1450Us, 100's Of Precancel Stamps In Stockcards, Glassines, & OthersUs 50c Franklin 1916-17 Sc 477 Nh Cat Value $2000Nystamps Us Stamp # 152 Mint With Gum H $30001916-17 Us Franklin 50c Sc 477 Nh Cat $2000Us - # 243 - UnusedNystamps Us Stamp # 456 Mint Og H $225 Washington22 Dec 1941 Censored Prexy Cv Joplin Mo To Sumatra - Returned Service SuspendedUs $2 Trans-mississippi 1898 Sc 293 Nh Cat Value $6000Us Air Post Stamps, C13 C14,c15 - 1930 Graf Zeppelin .65,1.30,2.60 Unused - MhPuerto Rico Classics: Scott #133 U 3c Landing Of Columbus Ponce 19nov Cv$60++Postcard From Hawaii Honolulu Port Arthur 1900 To Italy UsaNoblespirit No Reserve 347/3 Ww Stockpile High Cv Fdc Souvenir Sheets Stock BookNystamps Us Duck Stamp # Rw1 Mint With Gum H $400Drbobstamps Us Scott #461 Sound Mint Og Hinged Stamp With Pf CertificateUs, 5 Old Local Stamps & 1 Match/medicine(faults), 1 Christmas SealNice Us C3 Mlh Extra Fine CenteringUs 10c Imperf 1847 Sc 2 Used Cat Value $1000Csa Confederate Cv Pmk Randolph Macon College To Graham North CarolinaDrbobstamps Us Scott #c15 Mint Og Lh StampNoblespirit No Reserve Powerhouse Popular Parcel Post 8 Sets=$1600 Drbobstamps Us Scott #c13 Mint Og Hinged Xf CenteredDrbobstamps Us Scott #599a Mnh Og Scarce Line Pair Of StampsUs $1 Perry 1894 Sc 261a Nh Cat Value $6500U.s. #30a Used - 5c Brown ($300)