PlainZIP

Mountain Time Zone ZIP Codes

Source:

America/Denver

The Mountain time zone (IANA zone identifier America/Denver) covers 1,987 USPS ZIP codes with a combined population of 12,676,277. Time-zone data on this page is tagged per ZIP rather than per state — several U.S. states sit across zone boundaries (Indiana, Kentucky, Tennessee, Oregon, Idaho, North Dakota, and others), so a ZIP-level tz field is the only way to answer correctly "what time is it in ZIP america-denver?" for applications like scheduling, shipping, or call-center routing.

Each ZIP in this view stores its canonical IANA zone string (America/Denver in this case), which automatically handles Daylight Saving Time transitions — no static UTC offset needed. Using the IANA identifier rather than a plain UTC offset means downstream tools (databases, cron jobs, APIs) compute the correct wall-clock time without manual DST adjustments twice a year.

The table below lists ZIP codes in Mountain sorted by population. Because this time zone contains more than 500 ZIPs, we show the top 500 by population here — click any ZIP to jump to its full Census ACS detail page. Each row links to the ZIP's full demographic, housing, and income profile. Time-zone tagging comes from the underlying Census ZIP Code Tabulation Area file cross-referenced with the tz database — the same source used by UNIX, Linux, iOS, and Android for zone data — so the assignments here match what a shipping carrier or phone OS would use for the same five-digit ZIP.

1,987

Total ZIP Codes

12,676,277

Total Population

ZIP Codes

Side-by-side: Compare 79936 vs 79912 →

Showing top 500 of 1,987 ZIP codes by population.

ZIP Code City State Population
79936 El Paso TX 111,086
79912 El Paso TX 77,161
87121 Albuquerque NM 76,721
80013 Aurora CO 69,588
84118 Salt Lake City UT 68,295
84015 Clearfield UT 62,494
80015 Aurora CO 62,432
87114 Albuquerque NM 61,623
80219 Denver CO 61,296
79924 El Paso TX 59,058
87120 Albuquerque NM 58,023
87105 Albuquerque NM 57,680
87111 Albuquerque NM 56,490
84404 Ogden UT 56,363
79907 El Paso TX 55,132
80134 Parker CO 55,075
79938 El Paso TX 53,520
84119 West Valley City UT 53,077
80634 Greeley CO 52,861
87124 Rio Rancho NM 51,404
84095 South Jordan UT 50,566
59901 Kalispell MT 49,693
80229 Denver CO 49,598
79928 El Paso TX 49,544
84604 Provo UT 49,145
84043 Lehi UT 49,030
84120 West Valley City UT 48,956
80631 Greeley CO 48,603
80525 Fort Collins CO 48,419
80011 Aurora CO 47,461
80504 Longmont CO 46,876
80020 Broomfield CO 46,871
80012 Aurora CO 46,665
59102 Billings MT 46,564
87401 Farmington NM 46,293
87507 Santa Fe NM 45,890
80918 Colorado Springs CO 45,467
80233 Denver CO 45,386
88101 Clovis NM 45,006
84010 Bountiful UT 44,821
80123 Littleton CO 44,795
84041 Layton UT 44,625
84074 Tooele UT 44,310
80526 Fort Collins CO 44,183
87031 Los Lunas NM 44,075
84321 Logan UT 44,074
80538 Loveland CO 43,930
87112 Albuquerque NM 43,584
57701 Rapid City SD 43,462
84062 Pleasant Grove UT 43,269
80022 Commerce City CO 42,699
80127 Littleton CO 42,597
84003 American Fork UT 42,384
84121 Salt Lake City UT 41,702
87123 Albuquerque NM 41,468
80016 Aurora CO 41,219
84081 West Jordan UT 40,732
79925 El Paso TX 40,641
80239 Denver CO 40,512
87109 Albuquerque NM 40,432
79915 El Paso TX 40,057
84020 Draper UT 39,765
80010 Aurora CO 39,728
80126 Littleton CO 39,698
59101 Billings MT 39,562
80501 Longmont CO 39,521
80401 Golden CO 39,378
84770 Saint George UT 39,131
79927 El Paso TX 39,016
80537 Loveland CO 38,821
87108 Albuquerque NM 38,647
87110 Albuquerque NM 38,587
80920 Colorado Springs CO 38,569
84065 Riverton UT 38,168
84660 Spanish Fork UT 37,995
84123 Salt Lake City UT 37,900
80221 Denver CO 37,779
80906 Colorado Springs CO 37,719
87144 Rio Rancho NM 37,719
88001 Las Cruces NM 37,484
84067 Roy UT 37,444
84084 West Jordan UT 37,247
88240 Hobbs NM 37,149
80014 Aurora CO 36,710
84057 Orem UT 36,666
84403 Ogden UT 36,582
80004 Arvada CO 35,892
88310 Alamogordo NM 35,776
84790 Saint George UT 35,770
80909 Colorado Springs CO 35,739
84401 Ogden UT 35,622
84088 West Jordan UT 35,603
82001 Cheyenne WY 35,484
80003 Arvada CO 35,384
79904 El Paso TX 35,060
80128 Littleton CO 34,988
80916 Colorado Springs CO 34,640
80017 Aurora CO 34,270
80210 Denver CO 33,946
80031 Westminster CO 33,932
80601 Brighton CO 33,833
88220 Carlsbad NM 33,725
80227 Denver CO 33,667
80220 Denver CO 33,529
80521 Fort Collins CO 33,409
84096 Herriman UT 33,396
84106 Salt Lake City UT 33,384
84037 Kaysville UT 33,369
84116 Salt Lake City UT 33,297
59701 Butte MT 33,147
57702 Rapid City SD 32,980
84606 Provo UT 32,291
80231 Denver CO 32,127
80241 Thornton CO 31,746
82009 Cheyenne WY 31,703
80524 Fort Collins CO 31,668
80211 Denver CO 31,583
59715 Bozeman MT 31,567
88203 Roswell NM 31,561
80204 Denver CO 31,493
84601 Provo UT 31,486
59405 Great Falls MT 31,438
80260 Denver CO 31,412
84405 Ogden UT 31,348
87107 Albuquerque NM 31,183
80503 Longmont CO 31,064
80027 Louisville CO 31,034
87505 Santa Fe NM 31,013
59801 Missoula MT 30,940
80226 Denver CO 30,930
84107 Salt Lake City UT 30,863
80911 Colorado Springs CO 30,596
84058 Orem UT 30,540
81001 Pueblo CO 30,498
80228 Denver CO 30,138
80021 Broomfield CO 30,051
81005 Pueblo CO 29,975
84663 Springville UT 29,975
80138 Parker CO 29,786
80122 Littleton CO 29,783
81212 Canon City CO 29,742
81007 Pueblo CO 29,709
59105 Billings MT 29,624
84092 Sandy UT 29,525
59601 Helena MT 29,283
80917 Colorado Springs CO 29,273
80205 Denver CO 29,221
80112 Englewood CO 29,217
80111 Englewood CO 28,948
84047 Midvale UT 28,936
80910 Colorado Springs CO 28,794
81504 Grand Junction CO 28,481
80120 Littleton CO 28,435
79930 El Paso TX 28,410
81301 Durango CO 28,308
84094 Sandy UT 28,069
84128 West Valley City UT 27,983
82901 Rock Springs WY 27,971
88011 Las Cruces NM 27,698
80602 Brighton CO 27,665
80104 Castle Rock CO 27,588
82601 Casper WY 27,400
80919 Colorado Springs CO 27,398
59718 Bozeman MT 27,367
80817 Fountain CO 27,311
88005 Las Cruces NM 27,116
80130 Littleton CO 27,054
87106 Albuquerque NM 27,013
80129 Littleton CO 27,007
80302 Boulder CO 26,941
59404 Great Falls MT 26,867
80907 Colorado Springs CO 26,758
80922 Colorado Springs CO 26,549
84044 Magna UT 26,524
84414 Ogden UT 26,507
80026 Lafayette CO 26,378
80923 Colorado Springs CO 26,105
79905 El Paso TX 26,036
88012 Las Cruces NM 25,961
80234 Denver CO 25,937
82604 Casper WY 25,882
84078 Vernal UT 25,851
80304 Boulder CO 25,623
80005 Arvada CO 25,553
81004 Pueblo CO 25,540
88201 Roswell NM 25,490
80247 Denver CO 25,449
79932 El Paso TX 24,986
84104 Salt Lake City UT 24,869
84070 Sandy UT 24,861
80214 Denver CO 24,821
84115 Salt Lake City UT 24,668
82801 Sheridan WY 24,558
84075 Syracuse UT 24,506
84117 Salt Lake City UT 24,305
59602 Helena MT 24,285
88007 Las Cruces NM 24,048
80033 Wheat Ridge CO 23,969
84109 Salt Lake City UT 23,858
80439 Evergreen CO 23,778
84302 Brigham City UT 23,703
87301 Gallup NM 23,674
81501 Grand Junction CO 23,465
84651 Payson UT 23,457
80249 Denver CO 23,404
88030 Deming NM 23,222
84093 Sandy UT 23,130
84040 Layton UT 23,026
82718 Gillette WY 23,003
80108 Castle Rock CO 22,612
80301 Boulder CO 22,555
87002 Belen NM 22,517
81401 Montrose CO 22,437
80303 Boulder CO 22,361
84105 Salt Lake City UT 22,140
80831 Peyton CO 21,993
80209 Denver CO 21,526
80206 Denver CO 21,521
80232 Denver CO 21,411
84005 Eagle Mountain UT 21,410
84097 Orem UT 21,322
84124 Salt Lake City UT 21,295
79902 El Paso TX 21,236
80207 Denver CO 21,216
87102 Albuquerque NM 21,204
84103 Salt Lake City UT 21,084
58601 Dickinson ND 21,078
84721 Cedar City UT 20,961
80110 Englewood CO 20,867
84108 Salt Lake City UT 20,738
80550 Windsor CO 20,675
80113 Englewood CO 20,562
80516 Erie CO 20,254
84341 Logan UT 20,109
87701 Las Vegas NM 20,081
80222 Denver CO 20,073
80904 Colorado Springs CO 19,867
82070 Laramie WY 19,766
84720 Cedar City UT 19,705
80132 Monument CO 19,637
80915 Colorado Springs CO 19,519
82501 Riverton WY 19,408
79934 El Paso TX 19,174
82007 Cheyenne WY 19,096
80921 Colorado Springs CO 18,999
80751 Sterling CO 18,857
80203 Denver CO 18,839
84780 Washington UT 18,756
82716 Gillette WY 18,747
88130 Portales NM 18,651
88061 Silver City NM 18,585
79903 El Paso TX 18,451
88021 Anthony NM 18,421
59802 Missoula MT 18,407
84025 Farmington UT 18,255
87532 Espanola NM 18,223
80403 Golden CO 18,211
87508 Santa Fe NM 18,183
59714 Belgrade MT 18,182
80212 Denver CO 18,051
79935 El Paso TX 18,042
80002 Arvada CO 18,020
80124 Lone Tree CO 18,020
69361 Scottsbluff NE 17,999
80223 Denver CO 17,987
87122 Albuquerque NM 17,977
87544 Los Alamos NM 17,950
80528 Fort Collins CO 17,946
80218 Denver CO 17,928
59808 Missoula MT 17,904
80121 Littleton CO 17,853
80215 Denver CO 17,843
80620 Evans CO 17,775
87410 Aztec NM 17,603
80237 Denver CO 17,569
84102 Salt Lake City UT 17,421
84098 Park City UT 17,282
80224 Denver CO 17,256
84032 Heber City UT 17,249
80109 Castle Rock CO 17,219
88210 Artesia NM 17,217
84045 Saratoga Springs UT 16,875
80305 Boulder CO 16,874
87413 Bloomfield NM 16,792
80487 Steamboat Springs CO 16,745
80905 Colorado Springs CO 16,254
59803 Missoula MT 16,203
84054 North Salt Lake UT 16,196
80236 Denver CO 16,123
80701 Fort Morgan CO 16,042
83001 Jackson WY 15,851
82609 Casper WY 15,730
88081 Chaparral NM 15,708
82072 Laramie WY 15,533
81601 Glenwood Springs CO 15,442
80023 Broomfield CO 15,415
81521 Fruita CO 15,397
80030 Westminster CO 15,329
84014 Centerville UT 15,268
81503 Grand Junction CO 15,250
81623 Carbondale CO 15,235
80465 Morrison CO 15,147
87501 Santa Fe NM 15,147
81507 Grand Junction CO 15,081
80903 Colorado Springs CO 15,057
82414 Cody WY 15,011
81003 Pueblo CO 14,939
84737 Hurricane UT 14,838
81101 Alamosa CO 14,675
82930 Evanston WY 14,614
87113 Albuquerque NM 14,477
81321 Cortez CO 14,459
88260 Lovington NM 14,343
57783 Spearfish SD 14,290
57703 Rapid City SD 14,205
84087 Woods Cross UT 13,983
81416 Delta CO 13,874
80908 Colorado Springs CO 13,827
59401 Great Falls MT 13,774
84501 Price UT 13,612
82520 Lander WY 13,535
59912 Columbia Falls MT 13,499
81520 Clifton CO 13,447
79849 San Elizario TX 13,208
82935 Green River WY 13,121
87015 Edgewood NM 13,105
59840 Hamilton MT 13,052
81650 Rifle CO 13,006
81625 Craig CO 12,921
80246 Denver CO 12,875
88063 Sunland Park NM 12,799
79835 Canutillo TX 12,690
59501 Havre MT 12,638
59937 Whitefish MT 12,588
87506 Santa Fe NM 12,580
81082 Trinidad CO 12,480
59106 Billings MT 12,375
80902 Colorado Springs CO 12,289
87104 Albuquerque NM 12,123
80621 Fort Lupton CO 12,079
80107 Elizabeth CO 12,042
80603 Brighton CO 11,973
87420 Shiprock NM 11,967
59047 Livingston MT 11,880
80863 Woodland Park CO 11,754
82435 Powell WY 11,738
87571 Taos NM 11,706
81006 Pueblo CO 11,513
81147 Pagosa Springs CO 11,446
59301 Miles City MT 11,404
84337 Tremonton UT 11,393
84335 Smithfield UT 11,372
87020 Grants NM 11,347
79901 El Paso TX 11,328
80534 Johnstown CO 11,301
84066 Roosevelt UT 11,283
69341 Gering NE 11,165
80640 Henderson CO 11,054
87402 Farmington NM 11,034
59044 Laurel MT 10,971
81506 Grand Junction CO 10,961
80216 Denver CO 10,924
84111 Salt Lake City UT 10,744
86503 Chinle AZ 10,714
84655 Santaquin UT 10,547
81403 Montrose CO 10,534
81620 Avon CO 10,450
80513 Berthoud CO 10,296
86040 Page AZ 10,283
81632 Edwards CO 10,276
82240 Torrington WY 10,235
87801 Socorro NM 10,221
80125 Littleton CO 10,190
80202 Denver CO 10,148
87004 Bernalillo NM 10,136
69301 Alliance NE 10,125
84042 Lindon UT 10,094
80238 Denver CO 10,058
81611 Aspen CO 9,921
59860 Polson MT 9,913
81050 La Junta CO 9,894
59923 Libby MT 9,856
84004 Alpine UT 9,818
81505 Grand Junction CO 9,779
84532 Moab UT 9,772
81008 Pueblo CO 9,641
80424 Breckenridge CO 9,627
59870 Stevensville MT 9,617
87059 Tijeras NM 9,604
82633 Douglas WY 9,592
82301 Rawlins WY 9,584
81052 Lamar CO 9,534
84029 Grantsville UT 9,473
57785 Sturgis SD 9,377
80517 Estes Park CO 9,313
84050 Morgan UT 9,290
80018 Aurora CO 9,206
59457 Lewistown MT 9,105
81230 Gunnison CO 9,075
81226 Florence CO 9,066
79922 El Paso TX 8,935
59711 Anaconda MT 8,933
88345 Ruidoso NM 8,845
84701 Richfield UT 8,692
87048 Corrales NM 8,682
81201 Salida CO 8,645
80549 Wellington CO 8,642
80433 Conifer CO 8,354
59330 Glendive MT 8,307
81122 Bayfield CO 8,228
81631 Eagle CO 8,215
87740 Raton NM 8,068
80421 Bailey CO 8,042
84664 Mapleton UT 8,033
57717 Belle Fourche SD 8,007
59725 Dillon MT 7,963
84653 Salem UT 7,947
84319 Hyrum UT 7,905
87327 Zuni NM 7,883
82401 Worland WY 7,866
86033 Kayenta AZ 7,844
69162 Sidney NE 7,765
81303 Durango CO 7,743
81637 Gypsum CO 7,721
59417 Browning MT 7,719
86505 Ganado AZ 7,682
59911 Bigfork MT 7,678
81211 Buena Vista CO 7,623
84060 Park City UT 7,596
82834 Buffalo WY 7,585
84315 Hooper UT 7,581
80235 Denver CO 7,571
80230 Denver CO 7,559
59804 Missoula MT 7,533
80615 Eaton CO 7,482
69337 Chadron NE 7,365
81144 Monte Vista CO 7,344
59270 Sidney MT 7,339
59635 East Helena MT 7,282
80435 Dillon CO 7,278
87035 Moriarty NM 7,268
80007 Arvada CO 7,262
84332 Providence UT 7,218
80723 Brush CO 7,179
79821 Anthony TX 7,142
87901 Truth Or Consequences NM 7,139
81647 New Castle CO 7,104
80461 Leadville CO 7,090
80498 Silverthorne CO 7,002
88401 Tucumcari NM 6,944
87417 Kirtland NM 6,910
84738 Ivins UT 6,878
59864 Ronan MT 6,752
80840 Usaf Academy CO 6,682
86504 Fort Defiance AZ 6,589
80310 Boulder CO 6,578
82201 Wheatland WY 6,467
87557 Ranchos De Taos NM 6,359
80808 Calhan CO 6,351
84627 Ephraim UT 6,310
57718 Black Hawk SD 6,307
57719 Box Elder SD 6,217
84765 Santa Clara UT 6,143
88242 Hobbs NM 6,141
84036 Kamas UT 6,045
81635 Parachute CO 5,957
81621 Basalt CO 5,914
80925 Colorado Springs CO 5,906
80543 Milliken CO 5,887
57747 Hot Springs SD 5,870
59722 Deer Lodge MT 5,781
84648 Nephi UT 5,776
79836 Clint TX 5,772
69153 Ogallala NE 5,769
88008 Santa Teresa NM 5,747
81067 Rocky Ford CO 5,670
84624 Delta UT 5,668
87313 Crownpoint NM 5,662
59847 Lolo MT 5,658
81657 Vail CO 5,581
84741 Kanab UT 5,556
59828 Corvallis MT 5,543
80102 Bennett CO 5,514
67735 Goodland KS 5,476
80829 Manitou Springs CO 5,476
82701 Newcastle WY 5,455
87416 Fruitland NM 5,454
59833 Florence MT 5,448
81425 Olathe CO 5,424
86510 Pinon AZ 5,358
81526 Palisade CO 5,321
57730 Custer SD 5,315
80118 Larkspur CO 5,308
80807 Burlington CO 5,304
84101 Salt Lake City UT 5,277
57770 Pine Ridge SD 5,271
81413 Cedaredge CO 5,243
81137 Ignacio CO 5,225
87013 Cuba NM 5,200
59034 Hardin MT 5,189

What are common questions about ZIP codes in this time zone?

How many ZIP codes are in the Mountain time zone? ▼
The Mountain time zone (America/Denver) contains 1,987 USPS ZIP codes with a combined population of 12,676,277 residents.
What states are covered by the Mountain time zone? ▼
The Mountain time zone spans multiple U.S. states. Several states — including Indiana, Kentucky, Tennessee, Oregon, Idaho, and North Dakota — sit across time zone boundaries, which is why ZIP-level zone data is more precise than state-level assignments.
Does the Mountain time zone observe Daylight Saving Time? ▼
Yes, the Mountain time zone (America/Denver) observes Daylight Saving Time, shifting clocks forward in spring and back in fall. The IANA zone identifier handles DST transitions automatically.
Why are only 500 ZIP codes shown for the Mountain time zone? ▼
The Mountain time zone contains 1,987 ZIP codes. We display the top 500 by population for performance. Each ZIP links to its full demographic profile with Census ACS data.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: IANA tz database (timezone assignments).

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Read our methodology to see how this data is sourced, computed, and verified.