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.


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Us Banknote Sc # 218 1888 90c Mint Nh Cat $2600Usa - Sg298 - $1 Black, "trans-mississippi", Fu - Cv £600+Us Imperf Sc # 1 1847 5c Used Cat $440Usa 1869 Used To 15c 6 Stamps Scott $950Drbobstamps Us Scott #2 Sound Used Well Centered Gem, Attractive CancelUs Zeppelin Sc # C15 1930 $2.60 Mint Nh Cat $975Nystamps Us Stamp # 1 1847 5c Used $425 Franklin366 Og Nh Cv $3,000. No Reserve!Us Franklin Sc # 523 1918 $2 Mint H Cat $525Usa - Sg299 - $2 Orange-brown, "trans-mississippi", Gu - Cv £950Drbobstamps Us Scott #c15 Sound Mint Og Hinged Well Centered Stamp361 Og Lh Cv $5,750. No Reserve!Nystamps Us Stamp # 630 Mint Og Nh $600Us Scott 3 Old 5c Franklin Red-brown On Bluish Paper M/ngai Cv $825Usa # 99 24c Washington Gray Lilac F Grill Used Cat 1600us Nice !!!!Scott#524 $5 Franklin 1918 Mint Nh Og Never Hinged $360United States , One Dollar Fine UsedScott Us 63 Used, 1¢ 1861 Franklin, F-vf, Red Fancy Cancel Scv $65100 Used Cv $950. No Reserve!Nystamps Us Stamp # 16 Used $1650Rare 4 Pence Embossed Revenue Stamp Rm4 On 1755 Topsham Maine Land & Mill Deed Us Re-issue Sc # 105 1875 5c Mint H Cat $2750Us(1930-1945), Overruns &, Excellent Assortment Of Complete Mint Sheets Of StampNystamps Us Air Mail Stamp # C14 Used $383 On Uy12m119 Xf H Cv $3,250. No Reserve!U.s. #634a Scarce Mint - 2c Carmine, Ty Ii ($325)Nystamps Us Stamp # 519 Mint Og Nh $850 WashingtonUs Bureau, Watermarked - Perry Sc # 276 1895 $1 Mint Nh Cat $1800Us Stamp Scott # 72 Blue 90 Cent Washington Beauty - Used Lightly Cancelled#502c Mint Original Gum Nh Imperf Pair Pse Cert Grade 85 Vf/ Xf & Pf Cert Us Zeppelin Sc # C15 1930 $2.60 Mint Nh Cat $975Scott #2 Washington Imperf On 1849 Folded Lttr. Kanawha C H, Va., Great ContentNice Selection Of U.s. Revenue Stamps In Binder With 7 Stock Certificates G750Noblespirit No Reserve Popular Us No. 243 Mlh $3 Columbian = $1,500 CvPhilippines, Canal Zone, Excellent Old Stamps Mounted On Scott Specialty Pages27 Used Cv $1,600. No Reserve!Us Mint Earlies With Banknotes And Pictorial + Rare Varieties Cat $49,135U.s. #c15 Mint Nh Beauty - 1930 $2.60 Graf Zeppelin ($975)Us Columbian Sc # 244 1893 $4 Mint Lh Cat $2000U.s. #c14 Mint Nh Beauty - 1930 $1.30 Graf Zeppelin ($650)Nystamps Us Stamp # 241 Mint Og H $4250 Appears Nh (dg )U.s. / Scott #122, Scarce Old 90¢ Lincoln, UsedU.s. #311 Mint Vf Beauty - 1902 $1.00 Farragut ($600)1930~"graf Zeppelin Pan-american Flight"~$2.60~scott #c15~mint~h~ogNystamps Us Philippines Stamp # 238 Mint Og H $6501912~"panama-pacific Exposition"~set Of 5~scott #397-400a~mint~nh~ogNystamps Us Stamp # 461 Mint Og Nh $325 WashingtonNystamps Us Philippines Stamp # 237 Mint Og H $300313 Used No Reserve!Usa 1930 Graf Zeppelin Airmail 65c Green Stamp - Fresh Mh - See!Drbobstamps Us Scott #1 Used Four Margin StampNystamps Us Air Mail Stamp # C13 Mint Og H $200Nystamps Us Revenue Stamp # R79a Used $1300Nystamps Us Stamp # 228 Mint Og H $350 Certificate1930~"graf Zeppelin Pan-american Flight"~65 Cent~scott #c13~mint~nh~og~coaMr Fancy Cancel 20 Fls Blue Green Tauton Ma Cds Printed Notice Crowe Cert Cv$325Us, Many Blocks, Accumulation Of Mint(much Nh) Stamps In 500+ Glassines262 Used Cv $1,250. No Reserve!Us Sc# 292 Unused Trans-mississippi Hinged Og 1898 IssueDrbobstamps Us Scott #c14 Sound Mnh Og Xf Centered Gem Stamp