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Sonoma County
| Measures, data | 2009 | 2010 |
|---|---|---|
| Total adult population in prison (number) as of December 31 | 1,263 | 1,222 |
| Imprisonments per 1,000 annual adult felony arrests | 270.7 | 246.3 |
| State imprisonment rate per 1,000 adult felony arrests (average) | 417.7 | 407.1 |
| County imprisonment rate as percent of state average (=100%), arrest based | 65% | 61% |
| County imprisonments if rate equaled state average, projected (number) | 1,949 | 2,020 |
| County actual imprisonments minus projected imprisonments at average state rate (number) | -686 | -798 |
| Costs added (saved) from excessive (lower) imprisonments (millions of dollars/year) | -$32.3 | -$36.6 |
| County imprisonment rates in state prisons | ||
| Men imprisoned per 1,000 male felony arrests | 328.3 | 302.3 |
| Women imprisoned per 1,000 female felony arrests | 73.9 | 64.2 |
| Total adult imprisonments per 100,000/population age 18-69 | 398.7 | 368.7 |
| Men imprisoned per 100,000 males age 18-69 | 742.3 | 697.0 |
| Women imprisoned per 100,000 females age 18-69 | 49.6 | 44.9 |
| County imprisonment rates in state prisons by offense | ||
| Imprisonments for violent offenses per 1,000 violent felony arrests | 621.7 | 594.0 |
| Imprisonments for property offenses per 1,000 property felony arrests | 252.2 | 227.4 |
| Imprisonments for drug offenses per 1,000 drug felony arrests | 84.0 | 80.4 |
| Imprisonments for violent offenses per 100,000 population | 152.5 | 155.4 |
| Imprisonments for property offenses per 100,000 population | 54.3 | 48.8 |
| Imprisonments for drug offenses per 100,000 population | 28.1 | 30.6 |
| Imprisonments for drug possession offenses per 100,000 population | 8.5 | 9.1 |
| Imprisonments for marijuana offenses per 100,000 population | 1.0 | 1.4 |
| Imprisonments for strike offenses per 100,000 population | 46.0 | 43.8 |
| Imprisonments for 3rd strikes per 100,000 population | 5.6 | 5.6 |
| Imprisonments for 2nd strikes per 100,000 population | 40.4 | 38.2 |
| Change in imprisonment rates per adult felony arrest compared to 2009 | N/A | -9% |
| County new felon admissions to state prisons | ||
| New felon admissions to prison by race/ethnicity, all races | 452 | 438 |
| New felon admissions per 1,000 adult felony arrests | 96.9 | 88.3 |
| New felon admissions, statewide average | 156.0 | 148.7 |
| New felon admissions per 1,000 felonies as a percent of the state average (=100%) | 62% | 59% |
| New felon admissions per 100,000 population, all races | 94.0 | 90.5 |
| White, not Latino, new felon admissions per 100,000 whites | N/A | 65.6 |
| Latino new felon admissions per 100,000 Latinos | N/A | 135.3 |
| Black new felon admissions per 100,000 African Americans | N/A | 531.8 |
| Asian/other new felon admissions per 100,000 Asian/other population | N/A | 79.1 |
| County adult jail incarceration rates | ||
| County adult jail incarcerations, average daily population, December | 955 | 909 |
| Percent of jail population that is unsentenced | 55% | 55% |
| County jail populations per 1,000 adult felony arrests | 204.7 | 183.2 |
| Jail incarceration rate, state average | 186.6 | 176.5 |
| County jail incarceration rate per 1,000 felony arrests as a percent of the state average (=100%) | 110% | 104% |
| Men jailed per 1,000 male felony arrests | 227.7 | 211.1 |
| Women jailed per 1,000 female felony arrests | 125.9 | 92.5 |
| County jail populations per 100,000 population age 18-69 | 301.4 | 274.2 |
| Men jailed per 100,000 males age 18-69 | 514.9 | 486.8 |
| Women jailed per 100,000 females age 18-69 | 84.6 | 64.7 |
| County total adult incarcerations (state prisons + local jails) as of December | ||
| Total adult population incarcerated | 2,218 | 2,131 |
| Total adult incarceration rate per 1,000 adult felony arrests | 475.4 | 429.5 |
| Total incarceration rate, state average | 604.3 | 583.5 |
| Total adult incarceration rate as a percent of the state average (=100%) | 79% | 74% |
| Total adult male incarceration rate per 1,000 adult male felony arrests | 556.0 | 513.4 |
| Total adult female incarceration rate per 1,000 adult female felony arrests | 199.8 | 156.7 |
| Total adult male incarceration rate per 100,000 males age 18-69 | 1,257.2 | 1,183.8 |
| Total adult female incarceration rate per 100,000 females age 18-69 | 134.2 | 109.7 |
| Percent of incarcerated adult population held locally | 43% | 43% |
| Raw numbers, county prisoners in state prisons | ||
| Men imprisoned | 1,185 | 1,147 |
| Women imprisoned | 78 | 75 |
| Imprisonments for violent felonies | 733 | 752 |
| Imprisonments for property felonies | 261 | 236 |
| Imprisonments for drug felonies | 135 | 148 |
| Imprisonments for drug possession offenses | 41 | 44 |
| Imprisonments for marijuana offenses | 5 | 7 |
| Imprisonments for strike offenses | 221 | 212 |
| Imprisonments for 3rd strikes | 27 | 27 |
| Imprisonments for 2nd strikes | 194 | 185 |
| Raw numbers, county new felon admissions to state prisons, calendar year | ||
| New felon admissions to prison, White, not Latino | N/A | 210 |
| New felon admissions to prison, Latino | N/A | 163 |
| New felon admissions to prison, Black | N/A | 36 |
| New felon admissions to prison, Asian/all other | N/A | 29 |
| Raw numbers, county jail incarcerations, ADP as of December | N/A | N/A |
| Jailed, unsentenced | 529 | 503 |
| Jailed, sentenced | 426 | 406 |
| Men jailed | 822 | 801 |
| Women jailed | 133 | 108 |
| Raw numbers, total county incarcerations (state prison + local jails) | N/A | N/A |
| Total incarcerated (state prison + local jails), adult males | 2,007 | 1,948 |
| Total incarcerated (state prison + local jails), adult females | 211 | 183 |
| County crime rates and adult arrest rates | ||
| Part I crime rate per 100,000 population (offenses reported to police) | 1,342.9 | 1,253.6 |
| Violent crime rate per 100,000 population | 398.9 | 387.7 |
| Property crime rate per 100,000 population | 944.0 | 865.9 |
| Adult felony arrest rate per 100,000 population age 18-69 | 1,472.8 | 1,497.1 |
| Violent crime arrest rate | 372.1 | 382.0 |
| Property crime arrest rate | 326.7 | 313.2 |
| Drug offense arrest rate | 507.5 | 555.1 |
| Male felony arrest rate | 2,261.3 | 2,305.6 |
| Female felony arrest rate | 671.9 | 699.9 |
| Raw numbers, county crimes reported to police, adult felony arrests, and populations | ||
| Part I crimes reported to police (number) | 6,454 | 6,066 |
| Violent crimes reported | 1,917 | 1,876 |
| Property crimes reported | 4,537 | 4,190 |
| Adult felony arrests, total (number) | 4,666 | 4,962 |
| Violent felony arrests | 1,179 | 1,266 |
| Property felony arrests | 1,035 | 1,038 |
| Drug felony arrests | 1,608 | 1,840 |
| Male felony arrests | 3,610 | 3,794 |
| Female felony arrests | 1,056 | 1,168 |
| Total county population, all ages (number) | 480,598 | 483,878 |
| White, not Latino population | N/A | 320,027 |
| Latino population | N/A | 120,430 |
| Black population | N/A | 6,769 |
| Asian/other population | N/A | 36,652 |
| Total adult population, age 18-69 | 316,819 | 331,450 |
| Male population, age 18-69 | 159,641 | 164,559 |
| Female population, age 18-69 | 157,178 | 166,891 |
| At Legislative Analyst-estimated cost per prisoner per year | $47,102 | $45,828 |
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Go to the California Sentencing Institute and click on the Interactive County Map to view the rates of adult arrests and imprisonments by offense, race, and sex.