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DSDownloadSpeed
FCC Data · Updated April 2026
A

King County Internet

King County, Washington has a Broadband Grade of A with an average download speed of 1000 Mbps across 86 ZIP codes. 100% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is above average for the U.S.

88
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in King County

A
86
B
0
C
0
D
0
F
0
Best

Fastest ZIP Codes in King County

ZIPGradeDownloadProvidersFiber
98001A1000 Mbps10Yes
98002A1000 Mbps10Yes
98003A1000 Mbps10Yes
98004A1000 Mbps10Yes
98005A1000 Mbps10Yes
98006A1000 Mbps10Yes
98007A1000 Mbps10Yes
98008A1000 Mbps10Yes
98010A1000 Mbps10Yes
98011A1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in King County

ZIPGradeDownloadProvidersFiber
98001A1000 Mbps10Yes
98002A1000 Mbps10Yes
98003A1000 Mbps10Yes
98004A1000 Mbps10Yes
98005A1000 Mbps10Yes
98006A1000 Mbps10Yes
98007A1000 Mbps10Yes
98008A1000 Mbps10Yes
98010A1000 Mbps10Yes
98011A1000 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in King County, Washington?

King County, Washington has an average maximum download speed of 1000 Mbps across 86 ZIP codes. The county received a Broadband Grade of A (88/100), which factors in download speed, provider competition, fiber availability, and upload speed. This meets the FCC broadband standard of 100 Mbps download.

How many internet providers are in King County?

King County has an average of 10 internet providers per ZIP code. 100% of ZIP codes in the county have fiber internet access. Having 3 or more providers typically leads to better prices and service quality through competition.

Is there fiber internet in King County?

100% of ZIP codes in King County, Washington have fiber internet available. Fiber provides the fastest and most reliable connections, typically 500 Mbps to 5 Gbps with symmetrical upload speeds. Fiber coverage in this county is above the national average.

What is the best ZIP code for internet in King County?

The best-connected ZIP code in King County is 98001 with a Broadband Grade of A, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

See how your connection compares to King County's 1000 Mbps average.