The Westchester District attorney's office says the 52-year-old lettercarrier, Tensy May Smith, of Croton-on-Hudson, pleaded guilty Thursday to fraud and grand larceny.
She could be sent to prison for one to three years.
Police in Pound Ridge said in February she stole items worth about $200,000, including a $250 jar of caviar.
Police officials said 32 people on Smith's route were victimized, and Netflix had canceled dozens of accounts when the rented DVDs weren't returned.
Officials also said there were more suspects, but they refused to comment further.