The current systematic review examined campus climate assessments administered at 4-year accredited institutions of higher education from 2016 to 2023. Data were collected from gray literature accessible on the official websites of 551 eligible institutions of higher education, comprising 923 administrations of campus climate assessments. We found that (a) administrations peaked in 2021 (20.6%), (b) students were the largest target population (47.3%), (c) most results were publicly accessible (65.2%), and (d) external developers were frequently employed (54.1%). Regarding properties of assessments, we found that (a) mixed formats were commonly employed (39.7%); (b) open-ended items were more commonly asked of employees than other groups; (c) the mean number of items was 51; (d) the mean response time was approximately 11 min; (e) assessments of sexual misconduct/assault/violence were primarily administered to students (28.4%), whereas assessments measuring broad aspects of campus climate targeted all campus groups (26.3%); and (f) the most frequently included content domains in campus climate assessments were institutional support for and commitment to diversity, equity, and inclusion, as well as sense of belonging. However, there was a notable absence of reliability and validity information, with evidence for each reported in only 4.1% and 4.3% of the administrations, respectively. Even when provided, evidence was not strongly grounded in conceptual frameworks from the campus climate literature. Recommendations were provided for obtaining reliability, validity, and fairness evidence, as well as strategies for initial planning and suggestions for advancing campus climate assessments.