Short answer: California Climate Zone 12 covers the Sacramento area and northern San Joaquin Valley. The California Energy Commission assigns 375 ZIP codes to it, across 189 places including Sacramento, Stockton, Modesto, Concord and Merced. 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 12 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 12 | Also in |
|---|---|---|
| Acampo | 95220 | — |
| Alamo | 94507 | — |
| Altaville | 95221 | — |
| Amador City | 95601 | — |
| Angels Camp | 95222 | — |
| Antelope | 95843 | — |
| Antioch | 94509, 94531 | — |
| Atwater | 95301 | — |
| Ballico | 95303 | — |
| Benicia | 94510 | — |
| Bethel Island | 94511 | — |
| Big Oak Flat | 95305 | — |
| Birds Landing | 94512 | — |
| Brentwood | 94513 | — |
| Brooks | 95606 | — |
| Burson | 95225 | — |
| Byron | 94514 | — |
| Camino | 95709 | — |
| Campo Seco | 95226 | — |
| Canyon | 94516 | — |
| Capay | 95607 | — |
| Carmichael | 95608, 95609 | — |
| Catheys Valley | 95306 | — |
| Ceres | 95307 | — |
| Chinese Camp | 95309 | — |
| Citrus Heights | 95610, 95611, 95621 | — |
| Clarksburg | 95612 | — |
| Clayton | 94517 | — |
| Clements | 95227 | — |
| Coloma | 95613 | — |
| Columbia | 95310 | — |
| Concord | 94518, 94519, 94520, 94521, 94522, 94524, 94527, 94529 | — |
| Cool | 95614 | — |
| Copperopolis | 95228 | — |
| Coulterville | 95311 | — |
| Courtland | 95615 | — |
| Cressey | 95312 | — |
| Crockett | 94525 | — |
| Crows Landing | 95313 | — |
| Danville | 94506, 94526 | — |
| Davis | 95616, 95617, 95618 | — |
| Delhi | 95315 | — |
| Denair | 95316 | — |
| Diablo | 94528 | — |
| Diamond Springs | 95619 | — |
| Discovery Bay | 94505 | — |
| Dixon | 95620 | — |
| Dos Palos | 93620 | — |
| Douglas Flat | 95229 | — |
| Drytown | 95699 | — |
| Dublin | 94568 | — |
| Dunnigan | 95937 | — |
| El Dorado | 95623 | — |
| El Dorado Hills | 95762 | — |
| El Nido | 95317 | — |
| Elk Grove | 95624, 95757, 95758, 95759 | — |
| Elmira | 95625 | — |
| Elverta | 95626 | — |
| Empire | 95319 | — |
| Escalon | 95320 | — |
| Esparto | 95627 | — |
| Fair Oaks | 95628 | — |
| Fairfield | 94533, 94534 | — |
| Farmington | 95230 | — |
| Fiddletown | 95629 | — |
| Folsom | 95630, 95763 | — |
| French Camp | 95231 | — |
| Galt | 95632 | — |
| Garden Valley | 95633 | — |
| Georgetown | 95634 | — |
| Glencoe | 95232 | — |
| Greenwood | 95635 | — |
| Groveland | 95321 | — |
| Guinda | 95637 | — |
| Gustine | 95322 | — |
| Herald | 95638 | — |
| Hickman | 95323 | — |
| Hilmar | 95324 | — |
| Holt | 95234 | — |
| Hood | 95639 | — |
| Hornitos | 95325 | — |
| Hughson | 95326 | — |
| Ione | 95640 | — |
| Isleton | 95641 | — |
| Jackson | 95642 | — |
| Jamestown | 95327 | — |
| Keyes | 95328 | — |
| Kit Carson | 95644 | — |
| Knightsen | 94548 | — |
| La Grange | 95329 | — |
| Lafayette | 94549 | — |
| Lathrop | 95330 | — |
| Le Grand | 95333 | — |
| Linden | 95236 | — |
| Livermore | 94550, 94551 | — |
| Livingston | 95334 | — |
| Lockeford | 95237 | — |
| Lodi | 95240, 95241, 95242 | — |
| Los Banos | 93635 | — |
| Lotus | 95651 | — |
| Madison | 95653 | — |
| Manteca | 95336, 95337 | — |
| Mariposa | 95338 | — |
| Martell | 95654 | — |
| Martinez | 94553 | — |
| Mather | 95655 | — |
| Mcclellan | 95652 | — |
| Merced | 95340, 95341, 95343, 95344, 95348 | — |
| Midpines | 95345 | — |
| Moccasin | 95347 | — |
| Modesto | 95350, 95351, 95352, 95353, 95354, 95355, 95356, 95357, 95358, 95397 | — |
| Mokelumne Hill | 95245 | — |
| Moraga | 94556, 94570, 94575 | — |
| Mount Aukum | 95656 | — |
| Mountain Ranch | 95246 | — |
| Murphys | 95247 | — |
| Newman | 95360 | — |
| North Highlands | 95660 | — |
| Oakdale | 95361 | — |
| Oakley | 94561 | — |
| Orangevale | 95662 | — |
| Orinda | 94563 | — |
| Patterson | 95363 | — |
| Pilot Hill | 95664 | — |
| Pine Grove | 95665 | — |
| Pittsburg | 94565 | — |
| Placerville | 95667 | — |
| Planada | 95365 | — |
| Pleasant Hill | 94523 | — |
| Pleasanton | 94566, 94588 | — |
| Plymouth | 95669 | — |
| Port Costa | 94569 | — |
| Rail Road Flat | 95248 | — |
| Rancho Cordova | 95670, 95741, 95742 | — |
| Represa | 95671 | — |
| Rescue | 95672 | — |
| Rio Linda | 95673 | — |
| Rio Vista | 94571 | — |
| Ripon | 95366 | — |
| River Pines | 95675 | — |
| Riverbank | 95367 | — |
| Rumsey | 95679 | — |
| Ryde | 95680 | — |
| Sacramento | 94203, 94204, 94205, 94206, 94207, 94208, 94209, 94211, 94229, 94230, 94232, 94234, 94235, 94236, 94237, 94239, 94240, 94244, 94245, 94247, 94248, 94249, 94250, 94252, 94254, 94256, 94257, 94258, 94259, 94261, 94262, 94263, 94267, 94268, 94269, 94271, 94273, 94274, 94277, 94278, 94279, 94280, 94282, 94283, 94284, 94285, 94286, 94287, 94288, 94289, 94290, 94291, 94293, 94294, 94295, 94296, 94297, 94298, 94299, 95811, 95812, 95813, 95814, 95815, 95816, 95817, 95818, 95819, 95820, 95821, 95822, 95823, 95824, 95825, 95826, 95827, 95828, 95829, 95830, 95831, 95832, 95833, 95834, 95835, 95836, 95837, 95838, 95840, 95841, 95842, 95851, 95852, 95853, 95860, 95864, 95865, 95866, 95867, 95894, 95899 | — |
| Salida | 95368 | — |
| San Andreas | 95249 | — |
| San Ramon | 94582, 94583 | — |
| Santa Rita Park | 93661 | — |
| Shingle Springs | 95682 | — |
| Sloughhouse | 95683 | — |
| Snelling | 95369 | — |
| Somerset | 95684 | — |
| Sonora | 95370 | — |
| Soulsbyville | 95372 | — |
| South Dos Palos | 93665 | — |
| Standard | 95373 | — |
| Stevinson | 95374 | — |
| Stockton | 95201, 95202, 95203, 95204, 95205, 95206, 95207, 95208, 95209, 95210, 95211, 95212, 95213, 95215, 95219, 95267, 95269, 95296, 95297 | — |
| Suisun City | 94585 | — |
| Sunol | 94586 | — |
| Sutter Creek | 95685 | — |
| Thornton | 95686 | — |
| Tracy | 95304, 95376, 95377, 95378, 95391 | — |
| Travis Afb | 94535 | — |
| Tuolumne | 95379 | — |
| Turlock | 95380, 95381, 95382 | — |
| Twain Harte | 95383 | — |
| Vacaville | 95687, 95688, 95696 | — |
| Vallecito | 95251 | — |
| Vallejo | 94591 | Zone 3 |
| Valley Springs | 95252 | — |
| Vernalis | 95385 | — |
| Victor | 95253 | — |
| Volcano | 95689 | — |
| Wallace | 95254 | — |
| Walnut Creek | 94595, 94596, 94597, 94598 | — |
| Walnut Grove | 95690 | — |
| Waterford | 95386 | — |
| West Point | 95255 | — |
| West Sacramento | 95605, 95691, 95798, 95799 | — |
| Westley | 95387 | — |
| Wilseyville | 95257 | — |
| Wilton | 95693 | — |
| Winters | 95694 | — |
| Winton | 95388 | — |
| Woodbridge | 95258 | — |
| Woodland | 95695, 95776 | — |
| Yolo | 95697 | — |
| Zamora | 95698 | — |
| Other ZIP codes | 94243, 94246, 94253, 95250, 95290, 95298, 95342, 95390, 95743, 95857, 95873, 95887 | — |
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 12 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 12 overview.
← Back to the Climate Zone 12 overview · All climate zones
More Climate Zone 12 guides: zone overview · Title 24 requirements · Title 24 cost · ADU requirements.
The same topic in neighbouring zones: Climate Zone 11 and Climate Zone 13. Statewide: finding your climate zone.