Health

California vs Massachusetts: Uninsured Rate

Massachusetts has a lower uninsured rate than California.

California flag
California
CA · West
6.4%
Share of residents without health insurance coverage.
Massachusetts flag
Massachusetts
MA · Northeast
Winner
2.6%
Share of residents without health insurance coverage.

Visual comparison

California6.4%
Massachusetts2.6%

Difference: 3.80 percentage points — Massachusetts leads.

National Rankings

Where They Rank Nationally

See where both states fall among all 50 states for uninsured rate.

California #23 · 6.4%
Massachusetts #1 · 2.6%
Best Worst

10 Best States — Uninsured Rate

Lower is better
#1 Massachusetts flag Massachusetts
2.6%
#2 Hawaii flag Hawaii
3.2%
#3 Vermont flag Vermont
3.4%
#4 Minnesota flag Minnesota
4.2%
#5 Michigan flag Michigan
4.5%
#6 North Dakota flag North Dakota
4.5%
#7 Rhode Island flag Rhode Island
4.5%
#8 New Hampshire flag New Hampshire
4.7%
#9 New York flag New York
4.8%
#10 Wisconsin flag Wisconsin
4.9%
Selected states
#23 California flag California
6.4%

California ranks 23rd and Massachusetts ranks 1st nationally for uninsured rate.

Related context

Health Access Context

Insurance coverage is the gateway to healthcare — closely tied to income, employment, and state policy.

What this means

California vs Massachusetts: Uninsured Rate in context

Massachusetts's uninsured rate is 2.6%, compared with 6.4% in California. Share of residents without health insurance coverage.

California
6.4%
Massachusetts
2.6%
Difference
3.80 percentage points

People also ask

California vs Massachusetts Uninsured Rate — common questions

QWhat is California's uninsured rate?

California's uninsured rate is 6.4%.

QWhat is Massachusetts's uninsured rate?

Massachusetts's uninsured rate is 2.6%.

QWhich state has a lower uninsured rate — California or Massachusetts?

Massachusetts has a lower uninsured rate than California.

More comparisons: California vs Massachusetts

Grouped tabs keep the deep-dive links tighter and easier to scan.

Full comparison

Data source and freshness

Data period
ACS 2023 estimates
Dataset reviewed
July 23, 2026
Method note
State values or ratios calculated from ACS fields.