Summary:
Zip code 80503, covering the Longmont and Niwot areas of Colorado, is home to five PK-5 elementary schools, all part of St. Vrain Valley School District No. Re1J, a 4-star district ranked 23rd out of 115 in Colorado. Together these schools enroll roughly 2,052 students and form a high-performing cluster, with zip code averages exceeding state averages by about 20 points in ELA and 24 points in math.
Three schools stand out as elite, 5-star options. Hygiene Elementary School ranks 39th in the state — the best in the zip code — while Niwot Elementary School ranks 42nd and leads the group in ELA (76.7%) with remarkably low chronic absenteeism of just 6.0%. Blue Mountain Elementary ranks 53rd and tops the group in math (73.1%) and science (84.4%). Longmont Estates Elementary School is a solid 4-star school that improved from 305th to 263rd in rank, with notably strong 4th-grade results. At the other end, Eagle Crest Elementary School is the clear outlier: ranked 485th with a 2-star rating, it trails the others by 35 to 50 points in every subject.
Socioeconomic and attendance challenges track closely with performance. Eagle Crest has the highest free/reduced lunch rate (44.9%) and chronic absenteeism (23.6%), and its rank has dropped for three straight years, from 279th to 485th — the most urgent concern in the area. Niwot has the lowest FRL rate (9.5%) and best attendance. Hygiene, however, shows that poverty is not destiny: despite a 30.4% FRL rate, it remains a top-40 school. The key takeaway for parents is that 80503 offers several outstanding choices — especially Niwot, Hygiene, and Blue Mountain — but performance varies widely even within the same district, so individual school data matters more than district reputation.
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