Lewis County Internet
Lewis County, Idaho has a Broadband Grade of C with an average download speed of 100 Mbps across 2 ZIP codes. 0% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is near the national average.
ZIP Code Grades in Lewis County
Fastest ZIP Codes in Lewis County
| ZIP | Grade | Download | Providers | Fiber |
|---|---|---|---|---|
| 83523 | C | 100 Mbps | 10 | No |
| 83543 | C | 100 Mbps | 10 | No |
Slowest ZIP Codes in Lewis County
| ZIP | Grade | Download | Providers | Fiber |
|---|---|---|---|---|
| 83523 | C | 100 Mbps | 10 | No |
| 83543 | C | 100 Mbps | 10 | No |
Frequently Asked Questions
What is the average internet speed in Lewis County, Idaho?
Lewis County, Idaho has an average maximum download speed of 100 Mbps across 2 ZIP codes. The county received a Broadband Grade of C (44/100), 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 Lewis County?
Lewis County has an average of 10 internet providers per ZIP code. 0% 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 Lewis County?
0% of ZIP codes in Lewis County, Idaho have fiber internet available. Fiber provides the fastest and most reliable connections, typically 500 Mbps to 5 Gbps with symmetrical upload speeds. Fiber access is limited in this county. Residents may want to check if BEAD broadband funding is planned for their area.
What is the best ZIP code for internet in Lewis County?
The best-connected ZIP code in Lewis County is 83523 with a Broadband Grade of C, 100 Mbps maximum download, and 10 providers. Fiber internet is not yet available in this ZIP code.
See how your connection compares to Lewis County's 100 Mbps average.
For this entity, the underlying data on this page comes from the FCC Broadband Data Collection (BDC). The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
The methodology behind every numeric value on this page is publicly documented on the the FCC Broadband Data Collection (BDC) portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FCC Broadband Data Collection, 2026.