DEMOGRAPHIC STUDY DEMOGRAPHIC STUDY Demographics and Enrollment Projection Study The School District of Clayton 2024-2025 School District of Clayton © Business Information Services, LLC Page 2 All information within this study is copyrighted, and considered the intellectual property of Business Information Services, LLC. It is provided to this school district for its inter- nal use. Any other use by other school districts, competitors of Business Information Services or others without express written permission is prohibited. Figure 1. Aerial view of the School District of Clayton, 2024. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 3 Executive Summary……………………………………………………………………………………………………………4 Key Findings……………………………………………………………………………………………………………………...5 Long-Range Projections……………………………………………………………………………………………………..8 Demographics Profile……………….…………………………………………………………………………………….…38 Enrollment Profile……………………………………………………………………………………………………………..48 Economics Profile……………………………………………………………………………………………………………..66 Housing Profile……………………………………………………………………………………………….………………..74 Building Profiles………………………………………………………………………………………………...……………..94 Third-Party Reports…………………………………………………………………………………………………….……100 CONTENT School District of Clayton © Business Information Services, LLC Page 4 EXECUTIVE SUMMARY ered to the district on Nov. 13, 2024. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 5 KEY FINDINGS School District of Clayton © Business Information Services, LLC Page 6 Figure 2. Distribution of schools in the School District of Clayton,

in the district—3 elementary schools, a middle school and a high school The district covers 3.21 sq. miles and there is a to- tal population in the district of 19,989. By 2033, the dis- trict’s population is expected to in- crease by only 39 persons. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 7 REASONS FOR THE STUDY School District of Clayton © Business Information Services, LLC Page 8 LONG-RANGE PROJECTION ANALYSIS Figure 3. District K-12 Enrollment, 1991-2025. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 9 School District of Clayton © Business Information Services, LLC Page 10 Figure 4. District K-12 enrollment trend, 2016-2025. Figure 5. District K-12 cohort survival rates, 2021-25. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 11 School District of Clayton © Business Information Services, LLC Page 12 Figure 6. Census population for School District of Clayton, 1990-2020. Figure 7. Census school-age population in Clayton district. 1990 2000 2010 2020 % of Total Population Ages 5-17 12.8% 12.9% 12.4% 13.2% 1990 2000 2010 2020 Average Age of Population 38.1 years 34.5 years 35.1 years 36.2 years 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 13 Figure 8. Population of 5-Year Age Cohorts, 1990-2020 Censuses. School District of Clayton © Business Information Services, LLC Page 14 Figure 9. Birth data by ZIP codes, the Clayton district, 1999-2023. Figure 10. Proportion of Kindergarten-age children living in the dis- trict that enroll in the district’s Kindergarten classes, 2007-2025.

Figure 10. Proportion of Kindergarten-age children living in the dis- trict that enroll in the district’s Kindergarten classes, 2007-2025. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 15 Figure 12. Housing and development data is used in time series fore- casting to produce the Model 5-Household Data ans Student Yield Ratios. Figure 11. Demographic data is used with time series forecasting in two projection models: Model 2 – Enrollment Projections from US Census and Student Yield Ratios, and Model 3 – Enrollment Projec- tions from Cohort Survival Rates and Kindergarten Pools. School District of Clayton © Business Information Services, LLC Page 16 Figure 13. Projection Model 1, 2021-2035. Figure 14. Projection Model 2, 2010-2035. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 17 Figure 16. Projection Model 4, 2011-2035. Figure 15. Projection Model 3, 2016-2035. School District of Clayton © Business Information Services, LLC Page 18 Figure 17. Projection Model 5, 2011-2035.

School District of Clayton © Business Information Services, LLC Page 18 Figure 17. Projection Model 5, 2011-2035. 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 19 Projection Models School Year Model 1 District Trend Model 2 US Census Model 3 Cohort/ K-Pool Model 4 3rd Party Model 5 Household 2024-2025 2,384 2,384 2,384 2,384 2,384 2025-2026 2,339 2,338 2,344 2,364 2,373 2026-2027 2,305 2,307 2,329 2,335 2,357 2027-2028 2,270 2,275 2,288 2,306 2,341 2028-2029 2,236 2,241 2,290 2,271 2,324 2029-2030 2,201 2,207 2,250 2,235 2,307 2030-2031 2,166 2,171 2,226 2,199 2,289 2031-2032 2,132 2,133 2,202 2,162 2,271 2032-2033 2,097 2,095 2,176 2,124 2,253 2033-2034 2,063 2,055 2,145 2,085 2,235 2034-2035 2,028 2,014 2,122 2,045 2,216 MIN MAX Figure 18. Comparison of the five projection models, 2025-2035.

2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 19 Projection Models School Year Model 1 District Trend Model 2 US Census Model 3 Cohort/ K-Pool Model 4 3rd Party Model 5 Household 2024-2025 2,384 2,384 2,384 2,384 2,384 2025-2026 2,339 2,338 2,344 2,364 2,373 2026-2027 2,305 2,307 2,329 2,335 2,357 2027-2028 2,270 2,275 2,288 2,306 2,341 2028-2029 2,236 2,241 2,290 2,271 2,324 2029-2030 2,201 2,207 2,250 2,235 2,307 2030-2031 2,166 2,171 2,226 2,199 2,289 2031-2032 2,132 2,133 2,202 2,162 2,271 2032-2033 2,097 2,095 2,176 2,124 2,253 2033-2034 2,063 2,055 2,145 2,085 2,235 2034-2035 2,028 2,014 2,122 2,045 2,216 MIN MAX Figure 18. Comparison of the five projection models, 2025-2035. School District of Clayton © Business Information Services, LLC Page 20 Figures 19-20. By school, by grade projections, 2025-2026. 2025-2026 School Grade Range K 1 2 3 4 5 6 7 8 9 10 11 12 School Total Ralph M. Captain Elementary K - 5th 48 49 55 41 48 51 0 0 0 0 0 0 0 292 Glenridge Elementary K - 5th 48 47 54 48 55 63 0 0 0 0 0 0 0 315 Meramec Elementary K - 5th 56 45 70 61 65 66 0 0 0 0 0 0 0 363 152 141 179 150 168 180 0 0 0 0 0 0 0 970 Wydown Middle School 6th - 8th 0 0 0 0 0 0 189 195 198 0 0 0 0 582 0 0 0 0 0 0 189 195 198 0 0 0 0 582 Clayton High School 9th - 12th 0 0 0 0 0 0 0 0 0 212 179 214 194 799 0 0 0 0 0 0 0 0 0 212 179 214 194 799 Grade Level Totals K - 12th 152 141 179 150 168 180 189 195 198 212 179 214 194 2,351 2024-2025 School Grade Range K 1 2 3 4 5 6 7 8 9 10 11 12 School Total Ralph M. Captain Elementary K - 5th 46 54 39 48 51 48 0 0 0 0 0 0 0 286 Glenridge Elementary K - 5th 44 53 45 55 63 63 0 0 0 0 0 0 0 323 Meramec Elementary K - 5th 42 69 58 65 66 69 0 0 0 0 0 0 0 369 132 176 142 168 180 180 0 0 0 0 0 0 0 978 Wydown Middle School 6th - 8th 0 0 0 0 0 0 191 198 218 0 0 0 0 607 0 0 0 0 0 0 191 198 218 0 0 0 0 607 Clayton High School 9th - 12th 0 0 0 0 0 0 0 0 0 172 217 192 218 799 0 0 0 0 0 0 0 0 0 172 217 192 218 799 Grade Level Totals K - 12th 132 176 142 168 180 180 191 198 218 172 217 192 218 2,384