Colorado: cities, counties, ZIP codes and districts
Colorado has 8 congressional districts, 35 state senate districts and 65 state house districts under the maps in force for November 3, 2026, plus 3,207 voting precincts, 64 counties, 482 cities, towns and Census-designated places, and 527 ZIP codes.
Cities and towns
Largest first. Each page lists the city's county, districts and ZIP codes.
- Denver
- Colorado Springs
- Aurora
- Fort Collins
- Lakewood
- Thornton
- Arvada
- Westminster
- Pueblo
- Greeley
- Boulder
- Centennial
- Highlands Ranch
- Longmont
- Loveland
- Broomfield
- Castle Rock
- Grand Junction
- Commerce City
- Parker
- Littleton
- Brighton
- Security-Widefield
- Northglenn
- Dakota Ridge
- Ken Caryl
- Englewood
- Pueblo West
- Windsor
- Wheat Ridge
- Lafayette
- Erie
- Fountain
- Columbine
- Four Square Mile
- Evans
- Louisville
- Golden
- Montrose
- Clifton
- Sherrelwood
- Cimarron Hills
- Durango
- Fort Carson
- Johnstown
- Cañon City
- Firestone
- Greenwood Village
- Welby
- Black Forest
- Frederick
- Federal Heights
- Lone Tree
- Sterling
- Fruita
- Steamboat Springs
- Superior
- Berkley
- Fort Morgan
- Cherry Creek
- The Pinery
- Edwards
- Wellington
- Castle Pines
- Rifle
- Monument
- Berthoud
- Glenwood Springs
- Alamosa
- Gunbarrel
- Woodmoor
- Roxborough Park
- Fairmount
- Evergreen
- Stonegate
- Craig
- Delta
- Redlands
- Cortez
- Derby
- Milliken
- Trinidad
- Twin Lakes
- Fruitvale
- Lochbuie
- Gypsum
- Fort Lupton
- Woodland Park
- Applewood
- Severance
- Lamar
- Eagle
- La Junta
- Aspen
- Gleneagle
- Air Force Academy
- Timnath
- Gunnison
- Stratmoor
- Carbondale
- Cherry Hills Village
- Orchard Mesa
- Dacono
- Sheridan
- Estes Park
- Eaton
- Salida
- Dove Valley
- Brush
- Shaw Heights
- Avon
- Breckenridge
- Todd Creek
- Edgewater
- New Castle
- Mead
- Manitou Springs
- Vail
- Meridian
- Battlement Mesa
- Glendale
- Silverthorne
- Castle Pines Village
- West Pleasant View
- Niwot
- Monte Vista
- El Jebel
- Lincoln Park
- Rocky Ford
- Basalt
- Florence
- Penrose
- Genesee
- Silt
- Sierra Ridge
- Yuma
- Ponderosa Park
- Strasburg
- Meridian Village
- Burlington
- Orchard City
- Snowmass Village
- Walsenburg
- Platteville
- Park Center
- Acres Green
- Frisco
- Bennett
- Buena Vista
- Bayfield
- Stepping Stone
- Holly Hills
- Palmer Lake
- Leadville
- Telluride
- Palisade
- Coal Creek
- Laporte
- Meeker
- La Salle
- Wray
- Holyoke
- Rangely
- Las Animas
- Cedaredge
- Colorado City
- Inverness
- Lyons
- Parachute
- Granby
- Limon
- Olathe
- Center
- Hayden
- Perry Park
- Leadville North
- Ault
- Sterling Ranch
- Idaho Springs
- Akron
- Aristocrat Ranchettes
- Elizabeth
- Hudson
- Crested Butte
- Cascade-Chipita Park
- Pagosa Springs
- Kremmling
- Kersey
- Columbine Valley
- Aetna Estates
- Indian Hills
- Nederland
- Del Norte
- Alamosa East
- Paonia
- Wiggins
- Fraser
- Springfield
- Byers
- Loma
- Kittredge
- Julesburg
- Mountain Village
- Keenesburg
- Fowler
- Ellicott
- Mancos
- Ridgway
- Dotsero
- Cripple Creek
- Towaoc
- Georgetown
- Pierce
- Deer Trail
- Winter Park
- Ordway
- Dillon
- Floyd Hill
- Minturn
- Gilcrest
- Upper Bear Creek
- Haxtun
- Paragon Estates
- Pine Brook Hill
- Lazy Acres
- Manassa
- Mount Crested Butte
- Poncha Springs
- Log Lane Village
- Ouray
- Oak Creek
- Dolores
- Hotchkiss
- Sanford
- Blue River
- La Veta
- Bow Mar
- Howard
- Ignacio
- Holly
- Aspen Park
- Blende
- Hugo
- Central
- Calhan
- Cheyenne Wells
- Foxfield
- North Washington
- Williamsburg
- La Jara
- Kiowa
- Fairplay
- Grand View Estates
- Hot Sulphur Springs
- Watkins
- Eads
- Cattle Creek
- Stratton
- Copper Mountain
- Antonito
- Green Mountain Falls
- Dove Creek
- Brook Forest
- Silverton
- Loghill Village
- Silver Cliff
- Walden
- Swink
- Simla
- San Luis
- Avondale
- Nucla
- Allenspark
- Flagler
- Eldorado Springs
- Walsh
- Mountain View
- Saguache
- Norwood
- Downieville-Lawson-Dumont
- Rockvale
- Beulah Valley
- Altona
- Otis
- South Fork
- Salt Creek
- Nunn
- De Beque
- Naturita
- North La Junta
- Fort Garland
- Keystone
- Aguilar
- Grand Lake
- Granada
- Comanche Creek
- Wiley
- Westcliffe
- Lake City
- Fleming
- Red Feather Lakes
- Franktown
- Crawford
- Tabernash
- Yampa
- Morrison
- Upper Witter Gulch
- Victor
- Collbran
- Coal Creek
- Pine Valley
- Placerville
- Empire
- Coaldale
- Manzanola
- St. Mary's
- Chacra
- St. Ann Highlands
- Blanca
- Olney Springs
- Echo Hills
- Hillrose
- Arboles
- Boone
- Romeo
- Johnson Village
- Morgan Heights
- Alma
- Louviers
- Woody Creek
- Nathrop
- Rico
- Merino
- East Pleasant View
- Sugarloaf
- Ovid
- Vineland
- Gerrard
- Mulford
- Sugar City
- City of Creede
- Lewis
- Red Cliff
- Jamestown
- Kit Carson
- Garden City
- Iliff
- Idledale
- Dinosaur
- Cheraw
- Mountain Meadows
- Brookside
- Catherine
- Phippsburg
- Eckley
- Gold Hill
- El Moro
- Peyton
- Peetz
- Silver Plume
- Larkspur
- Rye
- Twin Lakes
- Arriba
- Bark Ranch
- Sunshine
- Ophir
- Rollinsville
- Elbert
- Tall Timber
- Bethune
- Hasty
- Midland
- Crisman
- Sedalia
- Blue Valley
- Maysville
- Redvale
- Sedgwick
- Seibert
- Alpine
- Lazear
- Crowley
- Southern Ute
- Grover
- Trail Side
- Genoa
- Peoria
- Divide
- Crestone
- Eldora
- Atwood
- Portland
- Snyder
- Capulin
- Crook
- Marble
- Jackson Lake
- McClave
- Seven Hills
- Florissant
- Ward
- Black Hawk
- Bonanza Mountain Estates
- Cokedale
- Redstone
- La Junta Gardens
- Westcreek
- No Name
- Briggsdale
- Weldona
- Pritchett
- Guffey
- Ramah
- Raymer (New Raymer)
- Moffat
- Gardner
- Brick Center
- Campo
- Arapahoe
- Jansen
- Segundo
- Vilas
- Idalia
- Vona
- Smeltertown
- Hooper
- Hoehne
- Matheson
- Maybell
- Orchard
- Padroni
- Heeney
- Montezuma
- Pitkin
- Haswell
- Marvel
- Rock Creek Park
- Saddle Ridge
- Stonewall Gap
- Blue Sky
- Glendale
- Valmont
- Goldfield
- Kim
- Starkville
- Branson
- Hartman
- San Acacio
- Sheridan Lake
- Somerset
- Cope
- Weston
- Paoli
- Amherst
- Conejos
- Laird
- Valdez
- Cotopaxi
- Parshall
- Leyner
- Hartsel
- Sawpit
- Vernon
- Colona
- Two Buttes
- Piedra
- McCoy
- Garfield
- Hidden Lake
- Brandon
- Wolcott
- Towner
- Bonanza
- Lakeside
- Cathedral
- Lynn
- Joes
- Norrie
- Carbonate
- Fulford
- Kirk
Congressional districts (2026)
| District | Short | 2020 population |
|---|---|---|
| Colorado's 1st congressional district | CO-01 | 721,714 |
| Colorado's 2nd congressional district | CO-02 | 721,720 |
| Colorado's 3rd congressional district | CO-03 | 721,730 |
| Colorado's 4th congressional district | CO-04 | 721,794 |
| Colorado's 5th congressional district | CO-05 | 721,714 |
| Colorado's 6th congressional district | CO-06 | 721,681 |
| Colorado's 7th congressional district | CO-07 | 721,697 |
| Colorado's 8th congressional district | CO-08 | 721,664 |
ZIP codes in Colorado
Each page lists the ZIP's congressional and legislative districts, with population shares where it's split.
- 80002
- 80003
- 80004
- 80005
- 80007
- 80010
- 80011
- 80012
- 80013
- 80014
- 80015
- 80016
- 80017
- 80018
- 80019
- 80020
- 80021
- 80022
- 80023
- 80024
- 80025
- 80026
- 80027
- 80030
- 80031
- 80033
- 80045
- 80101
- 80102
- 80103
- 80104
- 80105
- 80106
- 80107
- 80108
- 80109
- 80110
- 80111
- 80112
- 80113
- 80116
- 80117
- 80118
- 80120
- 80121
- 80122
- 80123
- 80124
- 80125
- 80126
- 80127
- 80128
- 80129
- 80130
- 80131
- 80132
- 80133
- 80134
- 80135
- 80136
- 80137
- 80138
- 80202
- 80203
- 80204
- 80205
- 80206
- 80207
- 80209
- 80210
- 80211
- 80212
- 80214
- 80215
- 80216
- 80218
- 80219
- 80220
- 80221
- 80222
- 80223
- 80224
- 80226
- 80227
- 80228
- 80229
- 80230
- 80231
- 80232
- 80233
- 80234
- 80235
- 80236
- 80237
- 80238
- 80239
- 80241
- 80246
- 80247
- 80249
- 80260
- 80264
- 80266
- 80290
- 80293
- 80294
- 80301
- 80302
- 80303
- 80304
- 80305
- 80310
- 80401
- 80403
- 80419
- 80420
- 80421
- 80422
- 80423
- 80424
- 80425
- 80426
- 80427
- 80428
- 80430
- 80432
- 80433
- 80434
- 80435
- 80436
- 80438
- 80439
- 80440
- 80442
- 80443
- 80444
- 80446
- 80447
- 80448
- 80449
- 80451
- 80452
- 80453
- 80454
- 80455
- 80456
- 80457
- 80459
- 80461
- 80463
- 80465
- 80466
- 80467
- 80468
- 80469
- 80470
- 80471
- 80473
- 80474
- 80475
- 80476
- 80478
- 80479
- 80480
- 80481
- 80482
- 80483
- 80487
- 80498
- 80501
- 80503
- 80504
- 80510
- 80512
- 80513
- 80514
- 80515
- 80516
- 80517
- 80520
- 80521
- 80524
- 80525
- 80526
- 80528
- 80530
- 80532
- 80534
- 80535
- 80536
- 80537
- 80538
- 80540
- 80542
- 80543
- 80544
- 80545
- 80546
- 80547
- 80549
- 80550
- 80601
- 80602
- 80603
- 80610
- 80611
- 80612
- 80615
- 80620
- 80621
- 80622
- 80623
- 80624
- 80631
- 80634
- 80640
- 80642
- 80643
- 80644
- 80645
- 80646
- 80648
- 80649
- 80650
- 80651
- 80652
- 80653
- 80654
- 80701
- 80705
- 80720
- 80721
- 80722
- 80723
- 80726
- 80727
- 80728
- 80729
- 80731
- 80732
- 80733
- 80734
- 80735
- 80736
- 80737
- 80740
- 80741
- 80742
- 80743
- 80744
- 80745
- 80746
- 80747
- 80749
- 80750
- 80751
- 80754
- 80755
- 80757
- 80758
- 80759
- 80801
- 80802
- 80804
- 80805
- 80807
- 80808
- 80809
- 80810
- 80812
- 80813
- 80814
- 80815
- 80816
- 80817
- 80818
- 80819
- 80820
- 80821
- 80822
- 80823
- 80824
- 80825
- 80826
- 80827
- 80828
- 80829
- 80830
- 80831
- 80832
- 80833
- 80834
- 80835
- 80836
- 80840
- 80860
- 80861
- 80862
- 80863
- 80864
- 80902
- 80903
- 80904
- 80905
- 80906
- 80907
- 80908
- 80909
- 80910
- 80911
- 80913
- 80914
- 80915
- 80916
- 80917
- 80918
- 80919
- 80920
- 80921
- 80922
- 80923
- 80924
- 80925
- 80926
- 80927
- 80928
- 80929
- 80930
- 80938
- 80939
- 80951
- 81001
- 81003
- 81004
- 81005
- 81006
- 81007
- 81008
- 81019
- 81020
- 81021
- 81022
- 81023
- 81024
- 81025
- 81027
- 81029
- 81030
- 81033
- 81036
- 81039
- 81040
- 81041
- 81043
- 81044
- 81045
- 81046
- 81047
- 81049
- 81050
- 81052
- 81054
- 81055
- 81057
- 81058
- 81059
- 81062
- 81063
- 81064
- 81067
- 81069
- 81071
- 81073
- 81076
- 81077
- 81081
- 81082
- 81084
- 81087
- 81089
- 81090
- 81091
- 81092
- 81101
- 81120
- 81121
- 81122
- 81123
- 81124
- 81125
- 81126
- 81128
- 81129
- 81130
- 81131
- 81132
- 81133
- 81136
- 81137
- 81138
- 81140
- 81141
- 81143
- 81144
- 81146
- 81147
- 81148
- 81149
- 81151
- 81152
- 81154
- 81155
- 81201
- 81210
- 81211
- 81212
- 81220
- 81221
- 81222
- 81223
- 81224
- 81225
- 81226
- 81227
- 81228
- 81230
- 81232
- 81233
- 81235
- 81236
- 81237
- 81239
- 81240
- 81241
- 81242
- 81243
- 81244
- 81248
- 81251
- 81252
- 81253
- 81301
- 81303
- 81320
- 81321
- 81323
- 81324
- 81325
- 81326
- 81327
- 81328
- 81330
- 81331
- 81332
- 81334
- 81335
- 81401
- 81403
- 81410
- 81411
- 81413
- 81415
- 81416
- 81418
- 81419
- 81422
- 81423
- 81424
- 81425
- 81426
- 81427
- 81428
- 81429
- 81430
- 81431
- 81432
- 81433
- 81434
- 81435
- 81501
- 81503
- 81504
- 81505
- 81506
- 81507
- 81520
- 81521
- 81522
- 81523
- 81524
- 81525
- 81526
- 81527
- 81601
- 81610
- 81611
- 81612
- 81615
- 81620
- 81621
- 81623
- 81624
- 81625
- 81630
- 81631
- 81632
- 81633
- 81635
- 81637
- 81638
- 81639
- 81640
- 81641
- 81642
- 81643
- 81645
- 81646
- 81647
- 81648
- 81649
- 81650
- 81652
- 81653
- 81654
- 81655
- 81656
- 81657
Get this in your AI agent
Your agent can list, look up and map every district and precinct in Colorado. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
list_geographies(country="US", level="congressional_district", region="CO")