The phrase "last count" refers to the most recent calculation or tally of something. It suggests that there have been previous counts or calculations, but the speaker is referring to the most recent one. Full definition
At last count there were about two dozen online shopping portals offered by rewards programs as places to go to earn or redeem rewards. (lendedu.com)
Additionally, visa investment programs are growing steadily abroad; at last count there were no less than ninety different programs offering visa on investment. (lawyer-monthly.com)
At last count in 2011, over 40 million households paid more than 30 percent of their incomes for housing. (nreionline.com)