Total enrollment
73,532
-12,599 (-15%) vs SY 2017-18
165 schools in Jefferson County School District No. R-1
Colorado · 74,935 students · 15 cities
Across 165 public schools, Jefferson County School District No. R-1 (Colorado) serves approximately 74,935 K-12 students across 90 elementary, 20 middle, and 30 high.
7-year change in Jefferson County School District No. R-1
SY 2017-18 vs SY 2024-25School count
144
-23 (-14%) vs SY 2017-18
% White
64%
was 67%
% Hispanic
27%
was 24%
% Black
1%
was 1%
% Asian
3%
was 3%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
About Jefferson County School District No. R-1
Jefferson County School District No. R-1 is an expansive Colorado school district running 165 campuses with combined enrollment near 74,935.
Looking at the level breakdown, Jefferson County School District No. R-1 is made up of 90 elementary, 20 middle, 30 high schools, and 25 combined or other.
Trend over the past 7 years. Total public-school enrollment in Jefferson County School District No. R-1 has fell 15% since SY 2017-18, moving from about 86,131 students to 73,532. The school count fell from 167 to 144 across the same 7-year window.
On allk12, the community for Jefferson County School District No. R-1 discusses enrollment trends, district policy changes, and bus-route updates. Members of the local community share what they see day-to-day.