Spanish Fork, UT vs Post Falls, ID: Cost of Living

Which city costs less?

Post Falls, ID has a modeled overall cost index 2.0% higher than Spanish Fork, UT.

Spanish Fork, UT · modeled 2BR rent: $1,410 / month
Post Falls, ID · modeled 2BR rent: $1,530 / month

These are saved estimates, not current rental listings. Some cities use adjusted regional data. Your household budget can differ from the overall index. Sources and assumptions

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Cost of Living Comparison 2026

Compare Spanish Fork, UT and Post Falls, ID using saved regional data and explicit budgeting assumptions. Rent estimates are not live listings. Change the salary below, then check the source notes before applying a result to your household.

Saved regional estimates · Sources and assumptions

Current salary in Spanish Fork, UT

Numbers update automatically as you type

Estimated extra cost: $464/month in Post Falls, ID

$150,000 in your current city has a modeled equivalent of $155,570 in Post Falls, ID

Regional cost estimates: Spanish Fork, UT uses North Las Vegas, NV. Post Falls, ID uses Spokane, WA. Available city ZIP rent estimates are shown separately.

Overall Cost

↑ 2.0%

More expensive

Monthly Impact

$464

Extra cost

Annual Impact

$5.6K

Per year

Assumes 60% of current gross income goes to living costs. The headline uses the category budget below; taxes, moving costs and savings goals are excluded.

Spanish Fork, UT

Population:46K

Cost Index:

89.9

100 = national average

Typical Home:$506K

Post Falls, ID

Population:45K

Cost Index:

91.6

100 = national average

Typical Home:$512K

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Spanish Fork, UT

The Beehive State

46K

Population

State Tax

Yes

Located in Utah, this city has a population of 46K residents.

Post Falls, ID

The Gem State

45K

Population

State Tax

Yes

Located in Idaho, this city has a population of 45K residents.

Cost Breakdown by Category

Estimated monthly spending: Spanish Fork, UT vs Post Falls, ID

Assumes 60% of your current gross income is spent on these categories. The headline and totals use this same budget. Rent estimates below are separate reference data. Rounded amounts may differ by $1.

Category	Spanish Fork, UT	Post Falls, ID	Difference	Change
Transportation	$1,399/mo	$1,903/mo	↑ $503more	36.0%
Housing	$2,438/mo	$2,086/mo	↓ $352less	14.4%
Healthcare	$613/mo	$841/mo	↑ $227more	37.1%
Groceries	$1,009/mo	$1,101/mo	↑ $92.62more	9.2%
Other	$1,548/mo	$1,543/mo	↓ $4.54less	0.3%
All Utilities	$493/mo	$491/mo	↓ $2.53less	0.5%

Transportation

↑ 36.0%

Spanish Fork, UT

$1,399

Post Falls, ID

$1,903

Difference

$503

Housing

↓ 14.4%

Spanish Fork, UT

$2,438

Post Falls, ID

$2,086

Difference

$352

less

Healthcare

↑ 37.1%

Spanish Fork, UT

$613

Post Falls, ID

$841

Difference

$227

Groceries

↑ 9.2%

Spanish Fork, UT

$1,009

Post Falls, ID

$1,101

Difference

$92.62

Other

↓ 0.3%

Spanish Fork, UT

$1,548

Post Falls, ID

$1,543

Difference

$4.54

less

All Utilities

↓ 0.5%

Spanish Fork, UT

$493

Post Falls, ID

$491

Difference

$2.53

less

🏠Rent Comparison

Studio

From$1,210

To$1,090

↓ $120

1 Bed

From$1,220

To$1,290

↑ $70.00

2 Bed

From$1,410

To$1,530

↑ $120

3 Bed

From$1,960

To$2,130

↑ $170

Spanish Fork, UTZIP-level data

1BR range: $1,220–$1,220/mo

Post Falls, IDZIP-level data

1BR range: $1,290–$1,290/mo

💡 Note: HUD Fair Market Rents estimate 40th-percentile gross rents, including most tenant-paid utilities. City ZIP summaries are medians of those estimates, not market median rents. Actual prices vary by neighborhood, amenities, and condition. Source: HUD Small Area Fair Market Rents FY2026.

$7,500

Monthly in Spanish Fork, UT

$7,964

Monthly in Post Falls, ID

$464

Difference

Home Values

Spanish Fork

Post Falls

$506K

Median Value

$512K

↑ +2.4%

YoY Change

↑ +1.7%

↑ +33.1%

5-Year Change

↑ +32.8%

Homes in Post Falls are 1% more expensive than Spanish Fork

Calculate payment - Spanish Fork Calculate payment - Post Falls

Source: Zillow Home Value Index (ZHVI), January 2026

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

↓ $9.0K

More taxes

Monthly Difference

$747

Less take-home

Effective Rate Diff

6.0%

Rate difference

Spanish Fork, UT

Federal Income Tax

Effective: 18.9%

$25.5K

Utah State Tax

Effective: 4.9%

$7.3K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 29.5%

$44.3K

Take-Home Pay

$8,809/month

$105.7K

Post Falls, ID

Federal Income Tax

Effective: 18.9%

$25.5K

Idaho State Tax

Effective: 10.8%

$16.2K

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 35.5%

$53.3K

Take-Home Pay

$8,062/month

$96.7K

Additional Tax Information

Spanish Fork, UT Tax Rates

Sales Tax:7.4%

Property Tax:0.6%

Post Falls, ID Tax Rates

Sales Tax:6.3%

Property Tax:0.7%

💡 Note: Tax calculations are estimates based on 2024/2025 tax brackets for single filers with standard deduction. Actual taxes may vary based on filing status, deductions, credits, and local variations.

Environment

Spanish Fork

Post Falls

64 Moderate

Air Quality

38 Good

24.6%

Good Air Days

76.5%

100 Very High

Climate Risk

90 Moderate

🔥🌊🌡

Top Hazards

💨

▲+2.7°F

2050 Outlook

▲+3.0°F

144 days

Heat Days >95°F

23 days

▲+2.7°F

2050 Outlook

▲+3.0°F

144 days

Heat Days >95°F

23 days

Before moving from Spanish Fork, UT to Post Falls, ID

Use this comparison to shortlist a move, then check the costs that depend on your household.

Compare actual homes. Get current quotes in Post Falls, ID for the same bedroom count and included utilities as your home in Spanish Fork, UT. Add parking, deposits, insurance and any overlapping leases. The rent estimates above are a starting point, not available listings.
Confirm your income. Check your expected pay with your employer, including any location adjustment. Use “Different salary at destination?” above to compare two incomes. The budget model excludes taxes and one-time moving costs; it is not a take-home-pay calculation.
Price your daily routine. Check the commute from a specific address to work, school or childcare. Add household expenses missing from this model, such as childcare, debt payments and medical needs. Verify local services before signing a lease.
Plan the transition. Get moving quotes and budget for travel, setup costs and time off. Open your Spanish Fork to Post Falls moving checklist to organize the tasks and timing.

Still choosing a destination? Explore cities similar to Post Falls, ID by cost, housing, population and region.

Frequently Asked Questions: Spanish Fork, UT vs Post Falls, ID

How do the cost estimates for Spanish Fork, UT and Post Falls, ID compare?

Post Falls, ID has a modeled overall cost index 2.0% higher than Spanish Fork, UT. This is a broad model comparison, not a survey of today's prices or a forecast of your household spending. Some cities use adjusted regional fallback data.

What does the equivalent salary mean?

At a $150,000 salary in Spanish Fork, UT, the model estimates $155,570 in Post Falls, ID. It allocates 60% of gross income to the origin city’s category budget and applies each destination category’s relative cost. The equivalent salary adds the total category difference to your income. The monthly difference is the same category difference divided by 12; it is not take-home pay or guaranteed savings. Household size, childcare and your actual lease are not inputs to this calculation.

What rent estimates are available for Spanish Fork, UT and Post Falls, ID?

The modeled two-bedroom rents are $1,410/month in Spanish Fork, UT and $1,530/month in Post Falls, ID. Where available, the source is a city median of HUD FY2026 ZIP-level estimates; otherwise a saved metro table is used. City adjustments may also apply. These are not asking rents or available listings. Compare actual properties with the same bedroom count and included utilities.

How should I use this comparison before moving?

Use it to shortlist locations, then replace modeled costs with a current housing quote, employer-confirmed income, commute costs, insurance and your household's other expenses. Add one-time moving costs separately. Source years differ and the saved datasets are not a live price feed. Read the methodology for the formulas and fallback rules.

💰 See how taxes change too — compare take-home pay between Utah and Idaho on TaxTakeHome.com