Short answer: California Climate Zone 11 covers the northern Sacramento Valley and foothills. The California Energy Commission assigns 111 ZIP codes to it, across 90 places including Chico, Redding, Auburn, Roseville and Shasta Lake. Use the table below or the ZIP code lookup to confirm a project's zone.
Title 24 climate zones are assigned by the California Energy Commission (CEC) by ZIP code, not by city limits. That is why a large city can appear in more than one zone, and why 1 of the places below also have ZIP codes in another zone.
Climate Zone 11 ZIP Codes by City
Source: the CEC's Building Climate Zones by ZIP Code table. Place names come from postal data and can differ from city limits. Your report always uses the zone for your project's exact address.
| City or place | ZIP codes in Zone 11 | Also in |
|---|---|---|
| Anderson | 96007 | — |
| Applegate | 95703 | — |
| Arbuckle | 95912 | — |
| Artois | 95913 | — |
| Auburn | 95602, 95603, 95604 | — |
| Bangor | 95914 | — |
| Beale Afb | 95903 | — |
| Bella Vista | 96008 | — |
| Biggs | 95917 | — |
| Browns Valley | 95918 | — |
| Brownsville | 95919 | — |
| Butte City | 95920 | — |
| Cedar Ridge | 95924 | — |
| Chicago Park | 95712 | — |
| Chico | 95926, 95927, 95928, 95929, 95973, 95976 | — |
| Colfax | 95713 | — |
| Colusa | 95932 | — |
| Corning | 96021 | — |
| Cottonwood | 96022 | — |
| Dobbins | 95935 | — |
| Durham | 95938 | — |
| Elk Creek | 95939 | — |
| Feather Falls | 95940 | — |
| Flournoy | 96029 | — |
| French Gulch | 96033 | — |
| Gerber | 96035 | — |
| Glenn | 95943 | — |
| Granite Bay | 95746 | — |
| Grass Valley | 95945, 95949 | — |
| Gridley | 95948 | — |
| Grimes | 95950 | — |
| Hamilton City | 95951 | — |
| Igo | 96047 | — |
| Knights Landing | 95645 | — |
| Lakehead | 96051 | — |
| Lincoln | 95648 | — |
| Live Oak | 95953 | — |
| Loomis | 95650 | — |
| Los Molinos | 96055 | — |
| Manton | 96059 | — |
| Marysville | 95901 | — |
| Maxwell | 95955 | — |
| Meadow Vista | 95722 | — |
| Meridian | 95957 | — |
| Millville | 96062 | — |
| Nelson | 95958 | — |
| Nevada City | 95959 | — |
| Newcastle | 95658 | — |
| Nicolaus | 95659 | — |
| Oak Run | 96069 | — |
| Obrien | 96070 | — |
| Olivehurst | 95961 | — |
| Oregon House | 95962 | — |
| Orland | 95963 | — |
| Oroville | 95965, 95966 | — |
| Palermo | 95968 | — |
| Palo Cedro | 96073 | — |
| Paradise | 95967, 95969 | — |
| Paskenta | 96074 | — |
| Penn Valley | 95946 | — |
| Penryn | 95663 | — |
| Pleasant Grove | 95668 | — |
| Princeton | 95970 | — |
| Proberta | 96078 | — |
| Rackerby | 95972 | — |
| Red Bluff | 96080 | — |
| Redding | 96001, 96002, 96003, 96099 | Zone 16 |
| Richvale | 95974 | — |
| Rio Oso | 95674 | — |
| Robbins | 95676 | — |
| Rocklin | 95677, 95765 | — |
| Roseville | 95661, 95678, 95747 | — |
| Rough And Ready | 95975 | — |
| Round Mountain | 96084 | — |
| Shasta | 96087 | — |
| Shasta Lake | 96019, 96079, 96089 | — |
| Sheridan | 95681 | — |
| Shingletown | 96088 | — |
| Smartsville | 95977 | — |
| Stonyford | 95979 | — |
| Sutter | 95982 | — |
| Tehama | 96090 | — |
| Vina | 96092 | — |
| Weimar | 95736 | — |
| Wheatland | 95692 | — |
| Whiskeytown | 96095 | — |
| Whitmore | 96096 | — |
| Williams | 95987 | — |
| Willows | 95988 | — |
| Yuba City | 95991, 95992, 95993 | — |
| Other ZIP codes | 95931 | — |
Why the Exact Zone Matters for Your Report
Title 24 is one statewide energy code, but the energy budget your design is compared against is calibrated to the climate zone, and several prescriptive requirements change by zone. If your ZIP code is split between zones, we confirm the zone from the project address before modeling. See Climate Zone 11 Title 24 requirements and how Title 24 calculations work.
Find Your Zone
Browse our city Title 24 pages for local information, or send your project address and we'll confirm the climate zone and prepare your report. See also: how climate zones affect a Title 24 report and the Climate Zone 11 overview.
← Back to the Climate Zone 11 overview · All climate zones
More Climate Zone 11 guides: zone overview · Title 24 requirements · Title 24 cost · ADU requirements.
The same topic in neighbouring zones: Climate Zone 10 and Climate Zone 12. Statewide: finding your climate zone.