Each edition grades its towns against each other only.
Cambridge’s median age is 56.8 years, where Idaho’s towns sit at 35.1 years and U.S. towns at 40.5 years. Among 60 Idaho towns, just 5 have a lower median household income than Cambridge. Its National Register listings include Cambridge News Office and Jewell Building. Cambridge has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Where Cambridge beats most towns.
In a town this size, neighbors are the best guide. Ask them anything.
Census counts: 349 in 1910, a peak of 473 in 1960, 335 in 2020. The archive holds 16 old photos and papers going back to 1905 and 2 maps from 1957 on.
4 places on the National Register of Historic Places.
Who provides power, water and the rest in Cambridge, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
Ordered by what stands out in Cambridge.
People 65 and older are 43% of residents (17% statewide); adults 18 to 34 are 6% of residents (23% statewide). Cambridge has grown 2.3% since 2020, to 357 residents in the Census Bureau’s 2025 estimate. 23% of adults 25 and older have a bachelor’s degree or more, vs 32% across Idaho.
53% women, 47% men
That’s an even split within the survey’s margin of ±8.8 points. Across Idaho, 49.7% of residents are women.
| Cambridge | ID | U.S. | |
|---|---|---|---|
| Under 10 | 7.1% | 12.5% | 11.6% |
| 10 to 17 | 7.7% | 11.6% | 10.3% |
| 18 to 24 | 0% | 9.8% | 9.1% |
| 25 to 34 | 5.6% | 13% | 13.7% |
| 35 to 44 | 9.9% | 13.1% | 13.2% |
| 45 to 54 | 14.8% | 11.3% | 12.2% |
| 55 to 64 | 12% | 11.7% | 12.7% |
| 65 to 74 | 23.8% | 10.4% | 10.2% |
| 75 and older | 19.1% | 6.6% | 7% |
| No diploma | 2.2% | 8.1% | 10.4% |
| High school | 40.6% | 26.1% | 26% |
| Some college | 27.2% | 24.2% | 19.1% |
| Associate’s | 7.6% | 9.7% | 8.8% |
| Bachelor’s | 8.7% | 21.3% | 21.6% |
| Graduate | 13.8% | 10.5% | 14.1% |
Census population estimates, 2025 · U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 400, single groups can be off by several points
Its public schools are run by the Cambridge Joint District. Its two schools are below.
| School | Level | Students | Letter |
|---|---|---|---|
| Cambridge Elementary SchoolLargest public elementary schoolGrades PK–5 | Grades PK–5 | 75 | A− |
| Cambridge Middle/High SchoolLargest public high schoolGrades 6–12 | Grades 6–12 | 81 | C |
NCES · EDFacts
Expected storm and flood damage is higher than in 91% of U.S. communities.
FEMA National Risk Index · OpenFEMA
Cambridge has chilly winters and hot summers, with very little rain. At 93°F, Cambridge’s July high is above both the Idaho town median (89°F) and the median of U.S. towns (85°F).
NOAA U.S. Climate Normals, 1991–2020
Most working residents leave Cambridge for work: only 14% work in town. The average trip to work in Cambridge is 18 minutes. Since 2013, Cambridge has added 65 jobs, to 181 in 2023.
| Cambridge | Idaho towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 18 minutes | 20 minutes | 25 minutes |
| Working residents who work in town | 14% | 22% | 8% |
| Below the poverty line | 13% | 12% | 9.6% |
Census LEHD 2023 · ACS
12% of adults binge drink in Cambridge. No town among the 60 in Idaho we compare has a higher share of adults who have high blood pressure than Cambridge. 30% of adults sleep under 7 hours in Cambridge.
| Cambridge | Idaho towns | U.S. towns | |
|---|---|---|---|
| Feel lonely (CDC PLACES) | 26% | 30% | 33% |
| Binge drink (CDC PLACES) | 12% | 15% | 16% |
| High blood pressure (CDC PLACES) | 40% | 31% | 35% |
| Sleep under 7 hours (CDC PLACES) | 30% | 34% | 36% |
| What stands out | Cambridge | ID |
|---|---|---|
| Fewer binge drinkers | 12.4% | 15.5% |
| Fewer adults facing housing insecurity | 8.3% | 10.3% |
| More adults with heart disease | 9.6% | 6.2% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
None within 15 miles of Cambridge; the nearest are
About 8 of every 100 Cambridge residents are enrolled in college, against 6 across Idaho.
4 places in Cambridge on the National Register of Historic Places.
City in Idaho, United States
Cambridge is a city in Washington County, Idaho, United States. The population was 335 at the 2020 census, up from 328 at the 2010 census. It is the second-largest city in the county, behind the significantly larger Weiser, the county seat.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Cambridge has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
