School enrollment figures were adopted Jan. 23 by the Washington Interscholastic Activities Association, firming up athletic classifications for the 2012-13 and 2013-14 school years.

There were no surprises locally, as Enumclaw landed in the Class 3A range, White River and Sumner fell within the Class 2A boundaries and Bonney Lake showed 2A numbers but was allowed to opt up and play at the 3A level. The league affiliations for the foursome will remain the same.

The only change impacting local competition is expected to come in the South Puget Sound 2A. Eatonville has slipped to Class 1A status and will be moving to the Nisqually League; Orting has grown to 2A size and will move from the Nisqually to the SPSL.

The WIAA determined the Class 4A classification will be for schools with 1,304 students or more; the 3A range is 1,086 to 1,303; 2A schools are 513 to 1,085; 1A is 208 to 512; the 2A range is 93 to 207; and Class 1A schools have 92 students or fewer.

Here’s a look at the four regional schools:

• Enumclaw’s enrollment count is 1,172.75, placing it 45th in size among the 63 schools in Class 3A. Of those 63 schools, 18 have 2A numbers but have chosen to opt up.

• White River’s count came in at 1,011.88, making it the fifth-largest Class 2A school in the state.

• Sumner High is just a notch behind White River with a count of 1,010.36 and is the sixth-largest school in the 2A ranks.

• Bonney Lake High’s population is pegged at 1,052.76. Of the 18 schools who have opted up to 3A status, BLHS is the largest.