Summary:
ZIP code 66854 has one high school, Hartford Junior/Senior High School, serving grades 6–12 with 101 students in the Southern Lyon County district. In 2025–2026, the school’s all-grades results were 27% in ELA, 37% in math, and 29% in science, compared with 46%, 41%, and 38% statewide. The clearest concern is ELA, where Hartford was 18 points below Kansas.
Within Hartford’s results, math is the strongest subject relative to the state, while ELA is the weakest. Grade-level results show sharper contrasts: seventh-grade math was 53%, 15 points above the state rate, but tenth-grade math was 14%, 22 points below; tenth-grade ELA was 21%, 19 points below the state. Grade 11 science was nearly level with Kansas at 30% versus 30%. SchoolDigger ranks Hartford 281st of 340 Kansas high schools, at the 17th percentile, with one star; as the ZIP code’s only high school, it has no local school-to-school comparison.
Math and science improved substantially from 2024–2025 to 2025–2026, while ELA edged down: math rose 10 points and science 15, but ELA fell 1 point. Hartford’s gaps to the state narrowed by 8 points in math and 18 in science, while the ELA gap widened by 2 points. SchoolDigger’s ranking has varied, moving from 261st of 327 schools in 2022–2023 to 315th of 318 in 2023–2024, then to 281st of 340 in 2025–2026. Other context includes a student–teacher ratio of 8.8 and a free/reduced-lunch rate of 56% in 2024–2025; chronic absenteeism was 33% in 2025–2026, compared with 18% statewide.
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