Amid fears that a lack of money will prevent an accurate count, states are gearing up to identify the people the 2020 U.S. Census is most likely to miss, from trailer-park residents in New York to people living in shantytowns in New Mexico. Residents of isolated rural areas, immigrants, and people who just don’t trust the government are among those who tend to be undercounted in the decennial census. The apportionment of U.S. House seats and nearly $590 billion in annual federal funding depend on the count, so state and local officials have a keen interest in making sure their residents don’t fall through the cracks. This story originally appeared at Stateline, an initiative of The Pew Charitable Trusts. The current task for state and local officials is to verify the Census Bureau’s residential address list: Starting in February, the bureau will turn over address lists to states and local governments for double-checking that must be finished within 120 days.