Caveats When Comparing California’s 2018 and 2019 Homeless Count Results
The U.S. Department of Housing and Urban Development (HUD) requires continuums of care (CoCs) to complete an unsheltered and sheltered homeless count every other year, which occurs on odd-number years such as 2019. Completing an unsheltered count during an even number year is optional.
HUD requires CoCs to complete a sheltered count every year. If a CoC chooses not to complete an unsheltered count during an even number year, the CoC’s unsheltered count for the previous odd-number year is carried over into the even number year and totaled with the even number year sheltered count.
Twenty-three (23) or more than half (52.3%) of the 44 CoCs had the same number of unsheltered persons in 2018 as in 2017 because their 2017 unsheltered number was carried over into 2018 and reported by HUD.
The three tables below reveal differences in the percentages that represent an increase when 2019 homeless count results are compared to 2018.
- There is an increase of 4% when the 2019 homeless count results for all 44 CoCs are compared to their 2018 homeless count results (see Table 1);
- There is an increase of 3% when the 2019 homeless count results for the 21 CoCs that did complete an unsheltered count in 2018 are compared to their 2018 homeless count results (see Table 2);
- There is an increase of 4% when the 2019 homeless count results for the 23 CoCs that did not complete an unsheltered count in 2018 are compared to their 2018 homeless count results (see Table 3).
Overstating the Increase
Stating that there was an increase of 16.4% in homelessness in California between 2018 and 2019 may be an overestimation because of a comparison of apples-to-oranges.
Comparing the 2019 homeless count results for all 44 California CoCs that conducted an unsheltered and sheltered count to the 21 CoCs that conducted an unsheltered and sheltered count in 2018 combined with the 23 CoCs that only conducted a sheltered count in 2018 and had their 2017 unsheltered count carried over to 2018, creates an apples-to-oranges comparison.
Comparing apples to apples, meaning the 21 CoCs that completed an unsheltered and sheltered count in 2018 to the same 21 CoCs that completed an unsheltered and sheltered count in 2019, reveals a lesser increase of 10.2%.
Implications for Next Steps
Future debates and discussions noting a comparison of the 2020 homeless count results to the 2019 results may also include an overestimation or an underestimation because not all 44 CoCs will complete an unsheltered count in 2020 and have their 2019 unsheltered count carried over into their 2020 count creating another apples-to-oranges comparison.
To avoid the potential for overestimation or underestimation, only comparisons of homeless counts completed in odd-number years should frame national and California-wide debates and discussions about increases in homelessness because of an apples-to-apples context.
An apples-to-apples comparison can be done by comparing the 2021 homeless count results with 2019 results, which will contribute to a better understanding of the scope of homelessness in California and its impact on the number of persons counted homeless nationwide.
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Table 1. Comparison of 2019 homeless count results to 2018 homeless count results for all 44 California CoCs
| Continuum of Care (CoC) | 2018 | 2019 | |
| CA-500 | San Jose/Santa Clara City & County CoC | 7,254 | 9,706 |
| CA-501 | San Francisco CoC | 6,857 | 8,035 |
| CA-502 | Oakland, Berkeley/Alameda County CoC | 5,496 | 8,022 |
| CA-503 | Sacramento City & County CoC | 3,621 | 5,561 |
| CA-504 | Santa Rosa, Petaluma/Sonoma County CoC | 2,996 | 2,951 |
| CA-505 | Richmond/Contra Costa County CoC | 2,234 | 2,295 |
| CA-506 | Salinas/Monterey, San Benito Counties CoC | 3,299 | 2,704 |
| CA-507 | Marin County CoC | 1,095 | 1,034 |
| CA-508 | Watsonville/Santa Cruz City & County CoC | 2,320 | 2,167 |
| CA-509 | Mendocino County CoC | 880 | 785 |
| CA-510 | Turlock, Modesto/Stanislaus County CoC | 1,356 | 1,923 |
| CA-511 | Stockton/San Joaquin County CoC | 1,685 | 2,631 |
| CA-512 | Daly City/San Mateo County CoC | 1,238 | 1,512 |
| CA-513 | Visalia/Kings, Tulare Counties CoC | 967 | 1,064 |
| CA-514 | Fresno City & County/Madera County CoC | 2,144 | 2,508 |
| CA-515 | Roseville, Rocklin/Placer, Nevada Counties | 678 | 617 |
| CA-516 | Redding/Shasta County CoC | 1,149 | 1,349 |
| CA-517 | Napa City & County CoC | 322 | 322 |
| CA-518 | Vallejo/Solano County CoC | 1,129 | 1,151 |
| CA-519 | Chico, Paradise/Butte County CoC | 1,125 | 1,266 |
| CA-520 | Merced City & County CoC | 514 | 608 |
| CA-521 | Davis, Woodland/Yolo County CoC | 448 | 655 |
| CA-522 | Humboldt County CoC | 703 | 1,702 |
| CA-523 | Colusa, Glen, Trinity Counties CoC | 268 | 192 |
| CA-524 | Yuba City/Sutter County CoC | 765 | 721 |
| CA-525 | El Dorado County CoC | 645 | 613 |
| CA-526 | Tuolumne, Amador, Calaveras, Mariposa Counties CoC | 398 | 845 |
| CA-527 | Tehama County CoC | 125 | 288 |
| CA-529 | Lake County CoC | 615 | 408 |
| CA-530 | Alpine, Inyo, Mono Counties CoC | 157 | 214 |
| CA-531 | Nevada County CoC | 272 | 415 |
| CA-600 | Los Angeles City and County | 49,955 | 56,257 |
| CA-601 | San Diego City and County CoC | 8,576 | 8,102 |
| CA-602 | Santa Ana, Anaheim/Orange County CoC | 4,955 | 6,860 |
| CA-603 | Santa Maria/Santa Barbara County CoC | 1,706 | 1,803 |
| CA-604 | Bakersfield/Kern County CoC | 885 | 1,330 |
| CA-606 | Long Beach CoC | 1,873 | 1,894 |
| CA-607 | Pasadena CoC | 677 | 542 |
| CA-608 | Riverside City & County CoC | 2,316 | 2,811 |
| CA-609 | San Bernardino City & County CoC | 2,118 | 2,607 |
| CA-611 | Oxnard, San Buenaventura/ Ventura County CoC | 1,308 | 1,669 |
| CA-612 | Glendale CoC | 260 | 243 |
| CA-613 | Imperial County CoC | 1,493 | 1,413 |
| CA-614 | San Luis Obispo County CoC | 1,095 | 1,483 |
|
Total: |
129,972 | 151,278 | |
|
Difference between 2018 and 2019 counts: |
+21,306 | +16.4 |
Table 2. Comparison of 2019 homeless count results to 2018 homeless count results for the 21 California CoCs that completed an unsheltered count in 2018 and 2019
| Continuum of Care (CoC) | 2018 | 2019 | |
| CA-504 | Santa Rosa, Petaluma/Sonoma County CoC | 2,996 | 2,951 |
| CA-505 | Richmond/Contra Costa County CoC | 2,234 | 2,295 |
| CA-509 | Mendocino County CoC | 880 | 785 |
| CA-510 | Turlock, Modesto/Stanislaus County CoC | 1,356 | 1,923 |
| CA-513 | Visalia/Kings, Tulare Counties CoC | 967 | 1,064 |
| CA-514 | Fresno City & County/Madera County CoC | 2,144 | 2,508 |
| CA-516 | Redding/Shasta County CoC | 1,149 | 1,349 |
| CA-517 | Napa City & County CoC | 322 | 322 |
| CA-520 | Merced City & County CoC | 514 | 608 |
| CA-523 | Colusa, Glen, Trinity Counties CoC | 268 | 192 |
| CA-529 | Lake County CoC | 615 | 408 |
| CA-530 | Alpine, Inyo, Mono Counties CoC | 157 | 214 |
| CA-600 | Los Angeles City and County | 49,955 | 56,257 |
| CA-601 | San Diego City and County CoC | 8,576 | 8,102 |
| CA-604 | Bakersfield/Kern County CoC | 885 | 1,330 |
| CA-607 | Pasadena CoC | 677 | 542 |
| CA-608 | Riverside City & County CoC | 2,316 | 2,811 |
| CA-609 | San Bernardino City & County CoC | 2,118 | 2,607 |
| CA-611 | Oxnard, San Buenaventura/Ventura County CoC | 1,308 | 1,669 |
| CA-612 | Glendale CoC | 260 | 243 |
| CA-613 | Imperial County CoC | 1,493 | 1,413 |
|
Total: |
81,190 | 89,593 | |
|
Difference between 2018 and 2019 counts: |
+8,403 | +10.3 |
Table 3. Comparison of 2019 homeless count results to 2018 homeless count results for the 23 California CoCs that did not complete an unsheltered count in 2018
| Continuum of Care (CoC) | 2018 | 2019 | |
| CA-500 | San Jose/Santa Clara City & County CoC | 7,254 | 9,706 |
| CA-501 | San Francisco CoC | 6,857 | 8,035 |
| CA-502 | Oakland, Berkeley/Alameda County CoC | 5,496 | 8,022 |
| CA-503 | Sacramento City & County CoC | 3,621 | 5,561 |
| CA-506 | Salinas/Monterey, San Benito Counties CoC | 3,299 | 2,704 |
| CA-507 | Marin County CoC | 1,095 | 1,034 |
| CA-508 | Watsonville/Santa Cruz City & County CoC | 2,320 | 2,167 |
| CA-511 | Stockton/San Joaquin County CoC | 1,685 | 2,631 |
| CA-512 | Daly City/San Mateo County CoC | 1,238 | 1,512 |
| CA-515 | Roseville, Rocklin/Placer, Nevada Counties | 678 | 617 |
| CA-518 | Vallejo/Solano County CoC | 1,129 | 1,151 |
| CA-519 | Chico, Paradise/Butte County CoC | 1,125 | 1,266 |
| CA-521 | Davis, Woodland/Yolo County CoC | 448 | 655 |
| CA-522 | Humboldt County CoC | 703 | 1,702 |
| CA-524 | Yuba City/Sutter County CoC | 765 | 721 |
| CA-525 | El Dorado County CoC | 645 | 613 |
| CA-526 | Tuolumne, Amador, Calaveras, Mariposa Counties CoC | 398 | 845 |
| CA-527 | Tehama County CoC | 125 | 288 |
| CA-531 | Nevada County CoC | 272 | 415 |
| CA-602 | Santa Ana, Anaheim/Orange County CoC | 4,955 | 6,860 |
| CA-603 | Santa Maria/Santa Barbara County CoC | 1,706 | 1,803 |
| CA-606 | Long Beach CoC | 1,873 | 1,894 |
| CA-614 | San Luis Obispo County CoC | 1,095 | 1,483 |
|
Total: |
48,782 | 61,685 | |
|
Difference between 2018 and 2019 counts: |
+12,903 | +26.4 |
Thank you for doing this analysis – it is really helpful. Does Table 3 have a typo? I count 23 CoCs, not 21.
Thanks for noting the typo. 21 was changed to 23 in table title for Table 3.