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”)

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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Ckstamps : Us Old Stamps Scott #243 $3 Columbian 1893 Mint Hr Og Pinhole Cv$1600Nystamps Us Stamp # 243 Mint Og H $1600Us Pictorial Sc # 129 1875 15c Mint H Cat $1350Ckstamps : Us Old Stamps Scott #292 $1 Trans-mississippi 1898 Used Cv$700 Nystamps Us Stamp # 121 Mint Og H $5750Mr Fancy Cancel 8a Sound Four Margin Position 95r2 Weiss Cert Cv$900 No ReserveU.s. #634a Scarce Mint Nh Pns - 2c Carmine, Ty Ii ($650)Scott#573 $5 Capital Dome 1923 Mint Nh Og Never Hinged Little Gum CreaseMr Fancy Cancel Stampless Aef Siberia Soldier's Mail 4 Page Letter VladivostokNystamps Us Stamp # 244 Used $1250Us Imperf Sc # 2 1847 10c Used Cat $1000Nystamps Us Stamp # 2 Used $1000Us, Incl C18(mnh), Wonderful Airmail & Other Bob Stamps In A Scott Platinum HingUs Type I Sc # 29 1857-61 5c Mint H Cat $5500U.s. #291 Mint Nh Beauty - 1898 50c Trans-mississippi ($1,800)Us Stamps # 243 $3 Columbian Mint Nh Cat Val $5250Us Mint Nh Columbian Shades Thru $4 Cat $49,000Nystamps Us Stamp # 122 Used $2100Scott #c14 Graf Zeppelin $1.60 Vf+ Mlh No ReserveUs Panama-pacific Sc # 400a 1913 10c Mint Nh Cat $400Pair Of Illinois Infantry Civil War Letters Tullahoma Campaign In Tennessee !!Drbobstamps Us Scott #27 Scarce Used Brick Red Variety W/pf Cert Cat $1800Nystamps Us Air Mail Stamp # C14 Mint Og H $400Us Special Delivery Sc # E3 1893 10c Mint Nh Cat $675Nystamps Us Stamp # 34 Used $3250 W/certNoblespirit No Reserve (jg) Superb Us 285-293 =$2,172 Cv Trans-miss Vf/xfMr Fancy Cancel 65 Civil War Patriotic Washington Eagle 4 Page Soldier LetterCkstamps : Us Stamps Scott #22 1c Type Iiia Franklin 1857 Mint H/og Cv$2400 CertCkstamps : Us Old Stamps Scott #244 $4 Columbian 1893 Used Cv$1200,seems ReperfUs Stamps #c13 $0.65 Graf Zeppelin Air Mail Mnh Vf No Reserve.Mr Fancy Cancel 138a I Grill Used Sound Light Cancel Weiss Cert Cv$1400 No ReserUs Stock Of Classic Mint Issues With Pictorial 90c #122 Cat $30,000Scott # 292 Us 1898 Trans-mississippi $1 Nh Cat $3500Us Perf 15 Sc # 39 1857-61 90c Mint H Cat $3000Nystamps Us Stamp # 140 Used $3750 GrillU.s. #125 Rare Mint - 1875 3c Locomotive Re-issue ($5,000)Us/ww, British Colonies 5000+ Stamps & Covers In 5 Albums/binders And OthersUs Stamps #c15 $2.60 Graf Zeppelin Air Mail Mvlh Vf+ No Reserve.Ckstamps : Us Old Stamps Scott #243 $3 Yellow Green Columbian 1893 Used Cv$900Ckstamps : Us Old Stamps Scott #242 $2 Brown Red 1893 Columbian Used Cv$650Scott 2014 United States Us Specialized Stamp Catalogue In Color Nice*no=reserveNystamps Us Air Mail Stamp # C6 Mint Og Nh $140Us 1898 Trans Mississippi Complete Nh Thru $2 #293 Cat $13,080Noblespirit No Reserve (jg) Superb Us 112-122 Pictorals $4,887 Cv Xf Choice!Us Stamps # 244 $4 Columbian Mint Nh Cat Val $7500Us Classic Mint Pictorial Thru Banknotes To 90c #151 & #218 Cat $35,575Us Regular Sc # 312 1902-03 $2 Mint Nh Cat $2750Nystamps Us Stamp # 1 1847 5c Used $425 Red Cancel FranklinU.s. #23 Scarce Used - 1c Blue, Type Iv ($900)Scott#547 $2 Franklin 1920 Mint H Og#10 Pair With Cert30 Us 19th Century Used Classic And Large Banknote Stamps Cv W/o Faults $801+Nystamps Us Stamp # 63 Mint With Gum H $300Scott#70 24c Washington 1861 UsedScott #312 Used 1903 $2 Blue Madison Cv $200.00Nystamps Us Stamp # 547 Mint Og H $125 FranklinUs, Offices In China, Shanghai Overprint, K1 On Postcard From China To The UsU.s. #r714 Used - 1957 $10,000 Documentary ($210)Drbobstamps Us Scott #c15 Sound Mint Og Hr Well Centered Stamp #122 Used