All 100 ZIP codes with "Sacramento, CA" as the primary USPS place name
Sacramento County is the only county in this table, unlike this site's Denver or Atlanta lists, which each split across county lines. zip-codes.com runs its own count of Sacramento's ZIP codes and lands on 99, one short of the 100 pulled from this site's GeoNames-based source data. The two counts were compiled at different times and won't necessarily line up exactly. Where zip-codes.com does add useful detail is delivery type: it classifies 29 of the codes as standard routes tied to carriers, 61 as unique codes tied to a single high-volume recipient, and 9 as PO Boxes. Sacramento's status as both a county seat and the state capital isn't the norm for a major California city, either: Long Beach, one of the state's largest cities by population, isn't its own county's seat, a distinction that belongs to Los Angeles instead.
That delivery-type split lines up with a pattern visible in the raw ZIP numbers themselves: 41 codes fall in the 958xx block (95811 through 95899), which covers most of the city's actual residential and business delivery routes, while the other 59 sit in a separate 942xx block (94203 through 94299) reserved for state government correspondence, similar to the way this site found Houston splitting into a residential 770xx block and a PO-Box-heavy 772xx block, though Sacramento's non-residential share is proportionally larger.
All 100 ZIP codes with "Sacramento, CA" as the primary USPS place name (per GeoNames.org, checked 2026-08-12)
| ZIP |
|---|
| 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 |
Why 59 of Sacramento's 100 ZIP codes never deliver mail to a house
The 942xx block exists because Sacramento is California's seat of government, not because the city itself is unusually large. Its population, about 525,000, is smaller than San Francisco's (roughly 830,000) or San Jose's (roughly 990,000), both of which get by with far fewer non-residential codes. The state legislature voted to move the capital to Sacramento from Benicia in February 1854, and the growth of state government in the city since then is what eventually pushed USPS to carve out dedicated codes for departments that receive far more mail than any single street address could sort through on its own.
The California Franchise Tax Board's own mailing-address page shows exactly how that plays out: personal income tax returns filed without a payment go to PO Box 942840, Sacramento, CA 94240; the same returns filed with a payment go to a different code, 94267; and business tax returns go to yet another, 94257. None of those three codes corresponds to a street address a resident could visit. Each one exists to sort incoming tax mail by return type before it's even opened, a level of postal subdivision a typical U.S. city never needs.