What does WatchPennies calculate?

WatchPennies estimates cost of living by US county across housing, food, transportation, healthcare, childcare, other necessities, taxes, and income context.

Do I need an account to use WatchPennies?

No. WatchPennies is a privacy-first web calculator that can be used without creating an account.

Can I compare two counties on WatchPennies?

Yes. WatchPennies lets you compare counties and adjust salary and family type to estimate relative cost differences.

What does the King County, WA vs Westchester County, NY comparison show?

It compares estimated living costs by category, including housing, food, transportation, healthcare, childcare, other necessities, taxes, and income context.

Can I change the salary and family type?

Yes. The comparison calculator supports salary and family type inputs so you can model costs for different households.

Does WatchPennies require an account for comparisons?

No. County comparisons are available without creating an account.

King County, WA vs Westchester County, NY: Cost of Living Difference

Is it cheaper?

King County, WA is cheaper than Westchester County, NY.

Moving to Westchester County, NY is estimated to cost $17,400 more per year.

Cheaper County

King County, WASpend $17,400 more per year.

Salary needed

$50,000 in King County, WA is about $61,845 in Westchester County, NY.

Biggest drivers

Taxes increases by $9,735 per year. Food saves $265 per year.

Housing: $2,382 higher in Westchester County, NY

Taxes: $9,735 higher in Westchester County, NY

Childcare: about the same in both counties

Healthcare: $4,192 higher in Westchester County, NY

Food: $265 lower in Westchester County, NY

Transport: $701 higher in Westchester County, NY

King County, WA→Westchester County, NY

Equivalent salary in Westchester County, NY

$61,845

+23.69% higher

Current salary: $50,000

Household: 1 adult · 0 children

Median Income in King County, WA: $154,490

Median Income in Westchester County, NY: $153,491

Living Index in King County, WA 47.55%

Living Index in Westchester County, NY 59.19%

This estimate matches your purchasing power (equivalent salary) when moving from King County, WA to Westchester County, NY.

* Living index is estimated as (estimated total cost / area median income) * 100. A living index above 100% means modeled costs exceed median income.

Cost of Living Breakdown by Category

Summary

Moving from King County, WA to Westchester County, NY is estimated to cost $17,400 more per year. To maintain similar purchasing power, a $50,000 salary in King County, WA would need to be about $61,845 in Westchester County, NY. The biggest increase is taxes, followed by healthcare.

This is a 23.69% increase in modeled annual costs. Taxes is $9,735 per year higher (67.89%); Healthcare is $4,192 per year higher (87.33%).

Below we break down the annual categories behind the difference using Economic Policy Institute 2026 Family Budget data.

What changed the most?

The following cards show the annual category differences that most affect the move to Westchester County, NY.

Biggest Cost

Largest annual cost increase when moving to Westchester County, NY

Annual Increase:

$9,735 per year

TAXES has the largest annual increase when moving to Westchester County, NY.

Biggest Savings

Largest annual savings when moving to Westchester County, NY

Annual Savings:

$265 per year

FOOD has the largest annual savings when moving to Westchester County, NY.

Breakdown of price percentages per category.

Numbers are average costs per section.

Category	Difference
Housing	8.71% higher
King County, WA Westchester County, NY Average Cost $27361.00 $29743.00 INFO: Housing costs are based on Department of Housing and Urban Development data. The estimate uses 40th percentile rent for privately owned rental units in each area. Studio apartments are paired with one-adult households, one-bedroom apartments with two-adult households, and two-bedroom apartments with households that have children.
Food	-5.13% lower
King County, WA Westchester County, NY Average Cost $5169.00 $4904.00 INFO: Food costs are based on the U.S. Department of Agriculture's food plans. Numbers are normalized to each area using Feeding America and Meal Gap data. This estimate assumes most food is bought at local grocery stores and prepared at home.
Transport	6.00% higher
King County, WA Westchester County, NY Average Cost $11684.00 $12385.00 INFO: Transportation costs are a combination of auto ownership, auto use, and public transit. Data is collected from the Center for Neighborhood Technology (CNT).
Healthcare	87.33% higher
King County, WA Westchester County, NY Average Cost $4800.00 $8992.00 INFO: Healthcare expenses come from average insurance premiums and out-of-pocket costs. The estimate assumes families purchase the lowest-cost available insurance plan under the Affordable Care Act. Data comes from Kaiser Family Foundation and the U.S. Department of Health and Human Services (HHS).
Other Costs	6.50% higher
King County, WA Westchester County, NY Average Cost $10100.00 $10757.00 INFO: This cost is calculated through the average spending of categories deemed necessary by the Bureau of Labor Statistics Consumer Expenditure Survey. These include apparel, personal care, household supplies, reading materials, and school supplies.
Childcare	0.00% higher
King County, WA Westchester County, NY Average Cost $0.00 $0.00 INFO: Childcare expenses are based on combined costs for center-based care and family-based care for 4-year-olds and school-aged children. For households with one child, the estimate assumes the child is 4 years old. For households with two children, the estimate assumes the second child is 8 years old.
Taxes	67.89% higher
King County, WA Westchester County, NY Average Cost $14340.00 $24075.00 INFO: Taxes are calculated from the National Bureau of Economic Research. The number weighs in personal income tax, state income tax, federal Social Security, and Medicare taxes.

In Westchester County, NY, modeled annual costs are $90,855 compared with $73,455 in King County, WA.

Overall, annual costs are higher in Westchester County, NY. The category breakdown above shows whether housing, taxes, transportation, healthcare, food, childcare, or other necessities are driving the increase.

In this case Westchester County, NY and King County, WA are both metropolitan locations.

Use our map to visually compare multiple counties at once.

Use the Cost of Living Map