1966 Penny (Lincoln Cent): Mintage & What to Check

In 1966 the U.S. Mint struck about 2.19 billion Lincoln cents for circulation: Philadelphia 811.1 million, Denver 991.4 million, San Francisco 383.4 million, San Francisco 2.3 million. That is 46% more than 1965. Among the 117 years from 1909 to 2025, 1966 ranks number 63 by total mintage (1 = most coins made), so it is a mid-range date for availability. The scarcest 1966 issue by mintage is San Francisco (2,261,583); the most common is Denver (991,431,200). Within the 1960s, 1966 ranks 8 of 10 years for mintage; the decade's high was 1964 (6.45 billion) and its low was 1965 (1.50 billion). Mint by mint: Philadelphia rose 169% from 1965; Denver rose 2% from 1965; San Francisco rose 74% from 1965; San Francisco fell 99% from 1965.

No 1966 cent carries a mint mark: the Mint left mint marks off all coins from 1965 to 1967. A blank space under the date is normal for this year.

• No U.S. coins carried mint marks in 1965, 1966 or 1967, so a cent from these years never shows a D or S. A missing mint mark is normal here and does not indicate an error or a rarity.
• Cents from this era are 95% copper and weigh 3.11 g. A coin with this date that weighs about 2.5 g is a plated or altered piece, not a transitional error (zinc cents only begin in 1982). Small raised blobs or lines between letters, especially between the B and E of LIBERTY, are die breaks (collectors call them BIE cents); they are common and carry little premium.
• For any 1966 cent, check three things before anything else: that the date and mint mark are fully readable, that the surfaces have not been cleaned (unnatural brightness, fine parallel scratches), and whether any doubling on the lettering is true die doubling (rounded, separated) rather than flat machine doubling.

What a 1966 cent is worth depends on three things in this order: the variety (a recognised doubled die or transitional error is worth far more than a normal coin), the mint (San Francisco is the lowest-mintage 1966 issue), and the grade (an uncirculated coin with original red colour is a different market from a worn brown one). A normal, circulated 1966 cent from the most common mint is an available coin; published price guides from grading services list values by grade and variety, and they change over time. This page does not give prices. To get a reference range for the exact coin in your hand, photograph both sides in even light and let the app read the date, mint mark and visible varieties first.