City comparison
Sammamish, WA is about 2,500 miles (4,000 km) from Waltham, MA in a straight line. By road, the drive is roughly 3,100 miles, or about 51 hours (about 5 days at 10 h/day) behind the wheel at highway speeds.
Driving distance is a rough estimate (great-circle × 1.25); driving time assumes a 60 mph blended average. Real trips run 10–20% longer with stops.
A direct flight from Sammamish, WA to Waltham, MA takes about 4 h 56 min, covering roughly 2,500 miles in a straight line. Connecting itineraries with a layover typically add 1–3 hours.
Block-to-block estimate at ~500 mph cruise, including taxi, climb, and descent — what an airline would publish, not pure airborne time.
Sammamish, WA is on Pacific Time and Waltham, MA is on Eastern Time — a 3-hour difference. When it's noon in Sammamish, it's 3 p.m. in Waltham, which puts Sammamish 3 hours behind.
Standard-time offsets. Daylight saving applies in both cities for most of the year (exceptions: Hawaii and most of Arizona), and the gap between the two stays the same.
Sammamish has a population of 66,586, vs 64,711 in Waltham — about the same size. By land area, Sammamish covers about 20 sq mi vs 13 sq mi for Waltham.
Population from US Census ACS. Land area from the Census Gazetteer (city proper, excluding inland water).
Cost indices by category, with the US city average (100) marked.
Index: 100 = US city average. Lower is more affordable.
Side-by-side costs, salaries, and sub-category indices.
| Metric | Sammamish | Waltham | Difference |
|---|---|---|---|
| Median rent | $2,627/mo | $2,141/mo | 22.7% higher in Sammamish |
| Median home value | $1,139,100 | $679,000 | 67.8% higher in Sammamish |
| Median household income | $215,047 | $113,443 | 89.6% higher in Sammamish |
| Groceries index | 104.0 | 99.8 | 4.2% higher in Sammamish |
| Utilities index | 95.7 | 144.3 | 50.8% higher in Waltham |
| Transportation index | 106.6 | 102.9 | 3.6% higher in Sammamish |
| Healthcare index | 106.6 | 103.7 | 2.8% higher in Sammamish |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Sammamish, you'd need $99,984 in Waltham to maintain your standard of living.
Climate, safety, and demographics side by side.
Sammamish and Waltham have nearly identical overall cost-of-living indices. Housing costs are roughly 4% higher in Sammamish than in Waltham. If you earn $80,000 in Sammamish, you'd need about $79,987 in Waltham to keep the same standard of living.