The Free Application for Federal Student Aid (FAFSA) is an important application that prospective college students must complete to qualify for state and federal financial aid. In this report, the authors describe how school district FAFSA completion rates are related to district-level poverty rates across and within states. Given that students from low-income backgrounds may be particularly dependent on financial aid to make postsecondary education affordable, it might be reasonable to hypothesize that districts that serve higher-poverty student populations also have higher FAFSA filing rates than their wealthier counterparts. Unfortunately, the authors find the opposite -- that, in most states, districts with higher rates of poverty have lower FAFSA completion rates. The authors observe this trend both across states and within states.