Attendance zones. Your home address usually decides your assigned public school. Districts publish zone maps, and the school you are zoned for is guaranteed a place for your child.
Open enrollment. Many states and districts let you apply to a public school outside your zone if it has room. Rules and deadlines vary, so check your district early.
Lotteries. When a charter or magnet school has more applicants than places, a random lottery decides who gets in. It is worth applying to more than one.
Private admissions. Private and parochial schools run their own process, with applications, visits, interviews and sometimes an entrance test. Deadlines often fall in the autumn or winter of the year before your child would start.