Overall
- Harrisburg-Carlisle
- 98.7
- Billings
- 93.5
Diff -5.1 RPP
Harrisburg-Carlisle vs Billings
Cost of living comparison based on BEA Regional Price Parities. Billings is 5.2% less expensive than Harrisburg-Carlisle.
5.2% less expensive
Billings, MT is 5.2% less expensive than Harrisburg-Carlisle, PA on BEA Regional Price Parities (overall RPP 93.5 vs 98.7). A $100,000 salary in Harrisburg-Carlisle buys about the same as $94,806 in Billings; the largest component gap is services.
- Overall RPP 98.7 (Harrisburg-Carlisle) vs 93.5 (Billings)
- $100k in Harrisburg-Carlisle ≈ $94,806 purchasing power in Billings
- Services drives the gap (-35.6 RPP points)
RPP parity plate
Pair PA:MT 98.7→93.5
TIER-NEAR · CROSS-STATE · SERVICES-LED · BOTH-BELOW · PP-SHIFT
- TIER-NEAR Near tier
- CROSS-STATE PA × MT
- SERVICES-LED Services-led gap
- BOTH-BELOW Both below 100
- PP-SHIFT PP shift
Instrument codes from this pair's BEA Regional Price Parities (overall · goods · services · rents · national benchmark 100 · purchasing-power conversion), not a ranking or recommendation.
What This Comparison Actually Tells You
Both metros remain below the U.S. benchmark of 100. This comparison chooses between two below-average price levels; “more expensive” here does not mean nationally expensive.
Billings, MT is 5.2% less expensive than Harrisburg-Carlisle, PA, a meaningful but not extreme shift. The move decision turns on which budget category creates the 5.1-point overall gap.
Services leads the difference, with Billings 35.6 points lower than Harrisburg-Carlisle. Goods, services, and rents all point in the same broad direction, making the headline comparison more transferable across household types.
Comparable population context is incomplete for this pair, so no market-scale explanation is inferred from the price indexes.
For a service-heavy household, test childcare, health, and other locally supplied costs before relying on rent alone. The BEA ratio converts $100,000 in Harrisburg-Carlisle to $94,806 in Billings, but it is not a personal spending weight.
How the Price Gap Changed
Harrisburg-Carlisle and Billings share 17 published annual releases from 2008 through 2024. Their overall gap widened, moving from 4.0 to 5.1 RPP points. Harrisburg-Carlisle remained the higher-index metro in the latest release.
Rents changed the most within this pair: its gap moved 16.5 points between the first and latest shared releases (2.4 to 18.9 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Harrisburg-Carlisle RPP | Billings RPP | Relative Gap |
|---|---|---|---|
| 2008 | 99.0 | 95.0 | 4.0 points Harrisburg-Carlisle higher |
| 2012 | 97.0 | 98.0 | 1.0 points Billings higher |
| 2016 | 98.2 | 94.8 | 3.3 points Harrisburg-Carlisle higher |
| 2020 | 96.1 | 92.2 | 3.9 points Harrisburg-Carlisle higher |
| 2024 | 98.7 | 93.5 | 5.1 points Harrisburg-Carlisle higher |
Annual BEA Regional Price Parity releases; a higher index means a higher price level relative to the national average of 100. Selected years shown from the full shared series.
Category Breakdown
Goods
- Harrisburg-Carlisle
- 100.7
- Billings
- 96.0
Diff -4.7 RPP
Services
- Harrisburg-Carlisle
- 108.1
- Billings
- 72.4
Diff -35.6 RPP
Rents
- Harrisburg-Carlisle
- 96.3
- Billings
- 77.4
Diff -18.9 RPP
| Category | Harrisburg-Carlisle | Billings | Difference |
|---|---|---|---|
| Overall | 98.7 | 93.5 | -5.1 |
| Goods | 100.7 | 96.0 | -4.7 |
| Services | 108.1 | 72.4 | -35.6 |
| Rents | 96.3 | 77.4 | -18.9 |
Visual Comparison
Overall
Harrisburg-Carlisle 98.7
Billings 93.5
Goods
Harrisburg-Carlisle 100.7
Billings 96.0
Services
Harrisburg-Carlisle 108.1
Billings 72.4
Rents
Harrisburg-Carlisle 96.3
Billings 77.4
Vertical line = national average (100)
Salary Equivalents
What a salary in Harrisburg-Carlisle would need to be in Billings for the same purchasing power:
| In Harrisburg-Carlisle | In Billings | Difference |
|---|---|---|
| $50,000 | $47,403 | $-2,597 |
| $75,000 | $71,104 | $-3,896 |
| $100,000 | $94,806 | $-5,194 |
| $150,000 | $142,209 | $-7,791 |
$ in Harrisburg-Carlisle = in Billings
Same BEA Regional Price Parity ratio as the table above (98.7 → 93.5), computed live from your number, nothing is sent anywhere.
Harrisburg-Carlisle
98.7
Cost Index
Billings
93.5
Cost Index
Frequently Asked Questions
Is Billings more expensive than Harrisburg-Carlisle?
Billings is 5.2% less expensive than Harrisburg-Carlisle. The overall cost index is 93.5 vs 98.7 (national average = 100).
What salary in Billings equals $100K in Harrisburg-Carlisle?
A $100,000 salary in Harrisburg-Carlisle has the same purchasing power as $94,806 in Billings. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Harrisburg-Carlisle and Billings?
Rents in Harrisburg-Carlisle are indexed at 96.3 while Billings is at 77.4 (national average = 100). Harrisburg-Carlisle has higher rents.
Data sources
- BEA Regional Price Parities (RPP), the cost-of-living indices shown on this page
- U.S. Census Bureau, American Community Survey (ACS), gross-rent observations behind the rents component
- BLS Consumer Price Index (CPI), goods and services price relatives
- BLS Occupational Employment and Wage Statistics (OEWS), labor-driven services component
- HUD Fair Market Rents (FMR), 40th-percentile rent cross-reference
Every figure on PlainCost is rendered directly from BEA Regional Price Parity source data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, our changelog, or report a data error. Data current as of 2026-08-11. Rankings measure the published cost-of-living index only; we don't recommend where to live or rate any metro's quality of life.