Live travel map

Speed limit coverage & sources

Agency speed limits and mapped roads across Washington, Oregon, and Idaho.

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What the map knows

State and local agency records supply mapped speed limits where available. OpenStreetMap adds roads throughout all three states, including interstates, U.S. and state highways, city streets, county roads, and mapped forest and service roads. Road ownership is not available for every segment.

A road being mapped does not mean its speed limit is known. We show a dash when the data or road match cannot establish a limit. We do not fill gaps with a guessed state-wide or road-class speed. Temporary changes, active school zones, and other conditional limits may need checking against posted signs.

Regional road inventory

2,066,607 mapped road segments in 119 counties. 226,549 segments have an explicit usable speed limit for at least one travel direction in OpenStreetMap.

Oldest regional extract: 2026-09-07. The road index is refreshed weekly. Agency queries refresh separately, with public road data cached for up to one hour.

The table measures the OpenStreetMap index only; agency feeds can add limits beyond these counts. Segments are split for map loading and assigned by their midpoint. These figures are not a claim that every real road or posted sign has been surveyed.

All 119 counties: 39 Washington, 36 Oregon, 44 Idaho
StateCountyMapped segmentsKnown limitLimit missing or conditional
IDAda County49,4427,13642,306
IDAdams County9,462869,376
IDBannock County10,86043710,423
IDBear Lake County4,1512643,887
IDBenewah County3,6031823,421
IDBingham County6,9322906,642
IDBlaine County6,286866,200
IDBoise County11,64429811,346
IDBonner County14,70236814,334
IDBonneville County16,92672016,206
IDBoundary County6,259596,200
IDButte County2,2221752,047
IDCamas County3,201453,156
IDCanyon County25,3451,85423,491
IDCaribou County5,6532195,434
IDCassia County7,7441797,565
IDClark County7,254997,155
IDClearwater County8,603178,586
IDCuster County6,9171736,744
IDElmore County10,46640110,065
IDFranklin County4,7702554,515
IDFremont County7,7931837,610
IDGem County4,113324,081
IDGooding County5,5091185,391
IDIdaho County13,25622713,029
IDJefferson County4,7061244,582
IDJerome County5,8272685,559
IDKootenai County24,7951,34623,449
IDLatah County6,5404736,067
IDLemhi County6,7571386,619
IDLewis County1,674391,635
IDLincoln County5,159415,118
IDMadison County4,8901654,725
IDMinidoka County5,5932355,358
IDNez Perce County5,4525054,947
IDOneida County3,059962,963
IDOwyhee County19,3863619,350
IDPayette County4,3881554,233
IDPower County4,5951444,451
IDShoshone County8,0133527,661
IDTeton County3,155303,125
IDTwin Falls County13,29846812,830
IDValley County12,84014712,693
IDWashington County3,2351383,097
ORBaker County9,2342259,009
ORBenton County14,83489313,941
ORClackamas County55,7435,99449,749
ORClatsop County11,1241,09110,033
ORColumbia County10,0566029,454
ORCoos County15,3281,42113,907
ORCrook County10,83313010,703
ORCurry County7,4621807,282
ORDeschutes County37,5685,08432,484
ORDouglas County35,72591434,811
ORGilliam County2,446942,352
ORGrant County11,6637211,591
ORHarney County14,29331513,978
ORHood River County4,7213254,396
ORJackson County34,0171,85332,164
ORJefferson County7,0601816,879
ORJosephine County12,85058012,270
ORKlamath County24,42771223,715
ORLake County18,53232718,205
ORLane County71,2633,99067,273
ORLincoln County21,0181,68319,335
ORLinn County23,31885122,467
ORMalheur County31,83438831,446
ORMarion County36,6002,38234,218
ORMorrow County5,715905,625
ORMultnomah County58,58425,92132,663
ORPolk County11,12839410,734
ORSherman County2,1551452,010
ORTillamook County11,96255611,406
ORUmatilla County16,53759415,943
ORUnion County8,0312497,782
ORWallowa County6,3051116,194
ORWasco County8,3832798,104
ORWashington County55,58310,82344,760
ORWheeler County3,214793,135
ORYamhill County14,37179213,579
WAAdams County6,0141,6174,397
WAAsotin County2,8081382,670
WABenton County24,3181,94222,376
WAChelan County15,4071,93513,472
WAClallam County13,87296012,912
WAClark County52,60711,91840,689
WAColumbia County2,251562,195
WACowlitz County18,34298317,359
WADouglas County7,6621,0616,601
WAFerry County8,2347737,461
WAFranklin County10,1098219,288
WAGarfield County1,897621,835
WAGrant County16,5801,08115,499
WAGrays Harbor County18,1771,94116,236
WAIsland County9,9195349,385
WAJefferson County12,24148611,755
WAKing County191,20758,896132,311
WAKitsap County42,7502,50340,247
WAKittitas County15,6611,30814,353
WAKlickitat County8,9123538,559
WALewis County23,1191,19621,923
WALincoln County8,9058458,060
WAMason County13,55170312,848
WAOkanogan County16,45475415,700
WAPacific County8,4014008,001
WAPend Oreille County7,5272537,274
WAPierce County76,95315,62361,330
WASan Juan County6,5385455,993
WASkagit County23,4591,88421,575
WASkamania County6,7233326,391
WASnohomish County84,4105,88278,528
WASpokane County61,9057,19554,710
WAStevens County14,55163613,915
WAThurston County38,5234,21334,310
WAWahkiakum County1,310761,234
WAWalla Walla County7,0324216,611
WAWhatcom County24,9132,42022,493
WAWhitman County9,1661,3307,836
WAYakima County33,8073,35030,457

Agency sources

These independently maintained feeds vary in age, detail, and availability. A source is queried only near its coverage area. Nearby source details show record dates when supplied.

OpenStreetMap attribution and data

© OpenStreetMap contributors. Regional extracts are provided by Geofabrik. The derived regional road index is available under the Open Database License (ODbL) 1.0.

Download the regional OpenStreetMap road index (SQLite; contains public road data, no traveler locations or trip history).

County inventory boundaries: U.S. Census Bureau TIGERweb.