Big Timber, MT vs New Plymouth, ID: Cost of Living

Which city costs less?

New Plymouth, ID has a modeled overall cost index 33.2% higher than Big Timber, MT.

Big Timber, MT · modeled 2BR rent
$1,160 / month
New Plymouth, ID · modeled 2BR rent
$1,220 / 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 Big Timber, MT and New Plymouth, 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

$
Numbers update automatically as you type

Estimated extra cost: $2,076/month in New Plymouth, ID

$150,000 in your current city has a modeled equivalent of $174,913 in New Plymouth, ID

Regional cost estimates: Big Timber, MT uses Boise, ID. New Plymouth, ID uses Boise, ID. Available city ZIP rent estimates are shown separately.
Overall Cost
↑ 33.2%
More expensive
Monthly Impact
$2,076
Extra cost
Annual Impact
$24.9K
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.

Big Timber, MT

Population:2K
Cost Index:
70.0
100 = national average
Typical Home:$429K

New Plymouth, ID

Population:2K
Cost Index:
93.2
100 = national average
Typical Home:$471K

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Big Timber, MT

The Treasure State

2K
Population
State Tax
Yes

Located in Montana, this city has a population of 2K residents.

New Plymouth, ID

The Gem State

2K
Population
State Tax
Yes

Located in Idaho, this city has a population of 2K residents.

Cost Breakdown by Category

Estimated monthly spending: Big Timber, MT vs New Plymouth, 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.

Housing
↑ 33.2%
Big Timber, MT
$2,406
New Plymouth, ID
$3,204
Difference
$798
more
Other
↑ 33.2%
Big Timber, MT
$1,587
New Plymouth, ID
$2,114
Difference
$527
more
Transportation
↑ 33.2%
Big Timber, MT
$1,185
New Plymouth, ID
$1,578
Difference
$393
more
Groceries
↑ 15.4%
Big Timber, MT
$1,078
New Plymouth, ID
$1,244
Difference
$166
more
Healthcare
↑ 15.4%
Big Timber, MT
$709
New Plymouth, ID
$819
Difference
$109
more
All Utilities
↑ 15.4%
Big Timber, MT
$535
New Plymouth, ID
$618
Difference
$82.47
more

🏠Rent Comparison

Studio
From$870
To$920
↑ $50.00
1 Bed
From$910
To$930
↑ $20.00
2 Bed
From$1,160
To$1,220
↑ $60.00
3 Bed
From$1,540
To$1,700
↑ $160
Big Timber, MTZIP-level data

1BR range: $910–$910/mo

New Plymouth, IDZIP-level data

1BR range: $930–$930/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 Big Timber, MT
$9,576
Monthly in New Plymouth, ID
$2,076
Difference

Home Values

Big Timber
New Plymouth
$429K
Median Value
$471K
↑ +6.5%
YoY Change
↑ +2.4%
↑ +64.2%
5-Year Change
↑ +40.9%

Homes in New Plymouth are 10% more expensive than Big Timber

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

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings
↓ $6.7K
More taxes
Monthly Difference
$556
Less take-home
Effective Rate Diff
4.4%
Rate difference

Big Timber, MT

Federal Income Tax
Effective: 18.9%
$25.5K
Montana State Tax
Effective: 6.4%
$9.6K
FICA Taxes
Social Security + Medicare
$11.5K
Total Taxes
Effective: 31.1%
$46.6K
Take-Home Pay
$8,618/month
$103.4K

New Plymouth, 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

Big Timber, MT Tax Rates

Sales Tax:0.0%
Property Tax:0.8%

New Plymouth, 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

Big Timber
New Plymouth
44 Good
Air Quality
44 Good
62.8%
Good Air Days
62.8%
88 Moderate
Climate Risk
88 Moderate
🔥💨
Top Hazards
🔥💨
▲+3.3°F
2050 Outlook
▲+3.3°F
49 days
Heat Days >95°F
49 days
▲+3.3°F
2050 Outlook
▲+3.3°F
49 days
Heat Days >95°F
49 days

Before moving from Big Timber, MT to New Plymouth, ID

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

  1. Compare actual homes. Get current quotes in New Plymouth, ID for the same bedroom count and included utilities as your home in Big Timber, MT. Add parking, deposits, insurance and any overlapping leases. The rent estimates above are a starting point, not available listings.
  2. 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.
  3. 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.
  4. Plan the transition. Get moving quotes and budget for travel, setup costs and time off. Open your Big Timber to New Plymouth moving checklist to organize the tasks and timing.

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

Frequently Asked Questions: Big Timber, MT vs New Plymouth, ID

How do the cost estimates for Big Timber, MT and New Plymouth, ID compare?

New Plymouth, ID has a modeled overall cost index 33.2% higher than Big Timber, MT. 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 Big Timber, MT, the model estimates $174,913 in New Plymouth, 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 Big Timber, MT and New Plymouth, ID?

The modeled two-bedroom rents are $1,160/month in Big Timber, MT and $1,220/month in New Plymouth, 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 Montana and Idaho on TaxTakeHome.com

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