Is San Mateo cheaper than Seattle?

No. Seattle is cheaper: typical rent is $2,501 a month versus $3,604 in San Mateo — 31% lower. Median household income is $149,152 in San Mateo compared with $116,068 in Seattle, so San Mateo has the stronger local pay picture.

Which city is safer, San Mateo or Seattle?

Seattle is safer on this comparison. Its crime index is 116 versus 122 in San Mateo — 5% lower (100 is the national average). Citywide indexes still hide neighborhood variation, so walk the block you would actually rent.

Which city has better schools, San Mateo or Seattle?

Seattle has better schools on this comparison: A (88/100) versus A- in San Mateo — school scores run 5% higher. District averages can hide campus-level gaps, so check the zoned elementary, middle, and high school you would actually use.

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City comparison

San Mateo, CA vs Seattle, WA

San Mateo, CA versus Seattle, WA is a real move, not a trivia matchup. This comparison uses the same 2026 neighborhood report data we publish on each city page — typical rent, median household income, crime indexes, school composites, and typical weather — so you can see which city actually fits how you live, work, and spend. Typical rents sit near $3,604 a month in San Mateo and $2,501 in Seattle, and median household income lands at $149,152 versus $116,068. Open either city's full report when you want the block-level detail behind these headlines.

San Mateo takes job market and weather, while Seattle takes affordability, safety, and schools. The widest gap is rent, where Seattle leads by 31% — the kind of spread you feel in a monthly budget or a nightly walk, not just on a chart. Read the category rows as a filter: if cheaper housing would change your life more than a stronger job market, weight rent first. If you are moving with kids, weight schools and crime. If you picked a city after one good weekend, use the weather and income rows to test whether that weekend survives a full year.

Numbers below are citywide, not a guarantee about the street you will actually live on. Two ZIP codes in San Mateo can feel further apart than San Mateo and Seattle do on paper. Use this page to pick a city, then use the San Mateo and Seattle reports to pick a neighborhood — and visit in the season you like least before you sign anything.

Full San Mateo report Full Seattle report

San Mateo, CA

Rent: $3,604/mo
Median income: $149,152
Crime index: 122
Schools: A-
Weather: 72°F

Seattle, WA

Rent: $2,501/mo
Median income: $116,068
Crime index: 116
Schools: A
Weather: 66°F

Rent

31% cheaper

Seattle rent is 31% cheaper than San Mateo

San Mateo

$3,604/mo

Seattle

Winner

$2,501/mo

What this means for your life

Typical rent runs $2,501 a month in Seattle versus $3,604 in San Mateo, so Seattle is 31% cheaper. That's roughly $1,103/month back in your pocket — $13,236/year. Over five years that's $66,180 you could redirect toward a down payment, travel, or investments. Housing is the bill you pay before groceries, childcare, or a social life, so that gap shows up in how often you eat out and how panicked a rent hike feels. If you already have a high-paying offer in San Mateo, the extra rent can be rational. If you do not, Seattle is the easier city to land in without blowing up your budget.

Median income

29% higher

San Mateo's median income is 29% higher than Seattle

San Mateo

Winner

$149,152

Seattle

$116,068

What this means for your life

Median household income is $149,152 in San Mateo versus $116,068 in Seattle, so typical pay runs 29% higher in San Mateo — about $33,084 more household income a year. Higher median income usually signals a stronger local job market and better negotiating leverage on salary. Remote workers should weigh this against cost of living rather than treating it as a direct personal benefit. For people who will actually work in town, San Mateo is the stronger labor market on paper. Seattle can still win if housing is cheap enough to offset the weaker median or if your specific role already pays well there.

Crime index

5% lower crime

Seattle's crime index is 5% lower than San Mateo

San Mateo

122 (100 = avg)

Seattle

Winner

116 (100 = avg)

What this means for your life

Seattle's crime index is 116 versus 122 in San Mateo (100 = national average), so citywide crime runs 5% lower in Seattle. The difference is noticeable without being night-and-day. You will still want to pick the neighborhood carefully in Seattle, but you will usually spend less energy on constant vigilance than you would in San Mateo. Tour both cities after dark before you let a modest index gap close the decision.

School scores

5% higher scores

Seattle's school scores are 5% higher than San Mateo

San Mateo

A- · 84/100

Seattle

Winner

A · 88/100

What this means for your life

Seattle grades out at A (88/100) against A- (84/100) in San Mateo — school scores run 5% higher in Seattle. The citywide gap is modest. For families with kids it is still worth checking the specific campuses you would actually use, because a small composite lead can disappear — or reverse — two neighborhoods over. San Mateo is only the better school story if a campus you already researched beats this composite.

Typical weather

6% more comfortable

San Mateo weather is 6% more comfortable than Seattle

San Mateo

Winner

72°F typical

Seattle

66°F typical

What this means for your life

San Mateo scores 6% more comfortable on this page's weather index, which rewards temperatures closer to a livable outdoor day. Typical temperatures sit around 72°F in San Mateo and 66°F in Seattle. San Mateo reads as warm weather most of the year; Seattle reads as mild, livable temperatures. The comfort edge is real but not a personality transplant. If you already know you want Seattle's season, a modest index lead should not talk you out of it. If you are undecided, San Mateo is the city where the forecast fights you less.

Fit check

Who should choose San Mateo

Career-focused movers who want salary upside plus year-round outdoor access

It is also a match for career-focused movers who want salary upside and year-round outdoor access. Median household income runs 29% higher ($149,152), and typical weather is the more comfortable of the two — around 72°F. That pairing is for people who will work hard and then actually use the evenings.

Open the San Mateo report →

Fit check

Who should choose Seattle

Families on a budget who want good schools without coastal price tags

Seattle fits families on a budget who want good schools without coastal price tags. Lower typical rent ($2,501/month) plus stronger school scores (A) is the combination that actually changes a decade of life, not just a year of housing. San Mateo can still win if a specific campus or family network is already there — but on the public data, Seattle is the more forgiving place to raise kids without overextending.

Open the Seattle report →

Bottom line

San Mateo vs Seattle, called

If cost of living is your priority, Seattle is the clear choice.

If the job market matters more to you, San Mateo pulls ahead.

For most movers comparing these two cities, Seattle offers the better overall package.

Common questions

San Mateo vs Seattle FAQ

Is San Mateo cheaper than Seattle?: No. Seattle is cheaper: typical rent is $2,501 a month versus $3,604 in San Mateo — 31% lower. Median household income is $149,152 in San Mateo compared with $116,068 in Seattle, so San Mateo has the stronger local pay picture.
Which city is safer, San Mateo or Seattle?: Seattle is safer on this comparison. Its crime index is 116 versus 122 in San Mateo — 5% lower (100 is the national average). Citywide indexes still hide neighborhood variation, so walk the block you would actually rent.
Which city has better schools, San Mateo or Seattle?: Seattle has better schools on this comparison: A (88/100) versus A- in San Mateo — school scores run 5% higher. District averages can hide campus-level gaps, so check the zoned elementary, middle, and high school you would actually use.

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