Four instruments, four different questions
Kansas has no single number for how healthy it is. It has a set of measuring programs, each run by a different body for its own reasons, and the honest way to read the state is to read them one at a time. A national ranking places Kansas against 49 other states on a set of measures. A disease surveillance system counts the cases that reached a laboratory and then met a written case definition. A groundwater program counts the wells a chemist actually got a sample out of. A weather station counts days.
None of those is a version of the others. A rank can move without anything in Kansas changing. A case count can rise because testing rose. A share of wells over a limit describes only the wells somebody sampled. This section takes each measurement, says who takes it and how, and stops where the document stops.
The ranking is a comparison and the mortality gap is not
Kansas ranked eighth in America's Health Rankings in 1991, fell to a low of 31st by 2022 and stood at 28th in 2024, on the Kansas Health Institute's reading of the series[1]. The 2025 Annual Report places the state 27th overall[2]. KHI calls that series a useful snapshot of a state's health status and says changes in it can be difficult to interpret, which is why its report sets an age-adjusted mortality comparison alongside the rank[1].
One figure in the same report does not depend on other states at all. Kansas ran 27.5 deaths per 100,000 under the national age-adjusted all-cause mortality rate in 1999, and 63.0 above it in 2023[1]. That is a Kansas rate against a national one, and it moved in one direction for a quarter of a century.
What a surveillance count is counting
KDHE recorded 76 confirmed and probable cases of ehrlichiosis in Kansas in 2025 and 26 of spotted fever rickettsiosis, the two highest-volume tick-borne diseases in the state's published series[3]. Those are counts of cases that met a definition, not counts of illness. The spotted fever series falls from 212 in 2019 to 22 in 2020 and stays there, and the department's data notes for that disease say a sharp decrease is expected from 2020 onward as a result of the changes made to its case definition in 2020[4].
A water figure is a figure about sampled wells
Kansas had no statewide groundwater quality program between 2001 and 2024. The Kansas Geological Survey restarted one under contract to KDHE and sampled 151 wells in 2024 and 166 in 2025[5]. Of the 143 production wells sampled in 2025, 12 came back above the federal nitrate limit of 10 mg/L, which the survey reports as 8.39 percent[5]. Read that as what it is, a result about 143 wells, and the widely repeated figure of about 30 percent of domestic wells over the limit as what it is, the finding of four studies published between 1988 and 1996[6].
Where the section stops
The Weather Service office at Wichita puts the 1991 to 2020 normal at 12.4 days a year at or above 100 degrees at Wichita Eisenhower National Airport, and the most in any year on that record at 53, in 2011[7]. One station is one place, which is the same caution the other three instruments need.
This publication reports health as a public matter: what is measured, by whom, on what definition, and what the measurement leaves out. It gives no medical advice and it recommends nobody. Readers who want the parts of that subject held in the other four sections, on coverage and cost, rural delivery, mental health and older Kansans, will find all five listed on this publication's front page.