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Environmental Engineers Salary in Idaho: Cost of Living Adjusted (2025)

Last updated: 2025 BLS data · Page refreshed:

What does a Environmental Engineers salary really buy you in Idaho?

Idaho is 8.2% cheaper than the US average

Data: BLS OEWS 2025 + BEA Regional Price Parities 2022 • Updated 2026-05-19

Nominal Salary
$117,520
Median annual (2025)
+8.9%
Real Purchasing Power
$128,017
COL-adjusted (RPP=91.8)

Idaho Cost of Living Index

Idaho's Regional Price Parity (RPP) is 91.8, meaning prices are 8.2% lower the national average. A Environmental Engineers earning $117,520 in Idaho has the equivalent purchasing power of $128,017 in an average-cost US state.

ID: 91.8
Cheapest (~85) US Avg (100) Priciest (~115)

Salary Breakdown: Nominal vs. COL-Adjusted

Every dollar goes further in low-cost states. Here is how each salary percentile compares after adjusting for Idaho's cost of living.

Percentile Nominal Salary COL-Adjusted Difference
10th Percentile (P10) $69,780 $76,013 +$6,233
25th Percentile (P25) $104,000 $113,289 +$9,289
Median (P50) $117,520 $128,017 +$10,497
75th Percentile (P75) $151,730 $165,283 +$13,553
90th Percentile (P90) $165,810 $180,620 +$14,810
Key Insight

A Environmental Engineers in Idaho earns $117,520 on paper, but low living costs mean your money goes 9% further — like earning $128,017 in an average-cost state. This makes Idaho one of the best value states for this occupation.

What the Cost-of-Living Data Says

Idaho Runs Well Below National Cost

RPP 91.8

Idaho's Regional Price Parity (RPP) of 91.8 means a basket of goods and services costs about 8.2% less than the national average. For a Environmental Engineers, every dollar earned effectively buys more here than in a 100-RPP state.

Meaningful Purchasing-Power Shift

+8.9%

After applying Idaho's RPP, the $117,520 median salary translates to $128,017 in real terms — a 8.9% gain. That difference can cover several months of expenses over a year for a Environmental Engineers.

Top-Quartile Adjusted Earnings in Idaho

#3 / 50

Ranked on COL-adjusted median pay for Environmental Engineers, Idaho places #3 of 50 states — top quartile. Either nominal wages run high, cost of living runs low, or both.

Best States for Environmental Engineers (After Cost of Living)

Where does Environmental Engineers salary stretch the furthest? Top 10 states ranked by COL-adjusted median salary.

$144,050
RPP 90.6
$134,320
RPP 89.8
3. Idaho
$128,017
RPP 91.8
4. Texas
$126,215
RPP 97.5
5. Ohio
$123,693
RPP 91.5
$120,268
RPP 89.4
7. Oregon
$119,230
RPP 106.6
$119,076
RPP 91.0
$118,474
RPP 97.7
10. Alabama
$116,913
RPP 87.8

Idaho ranks #3 out of 50 states for Environmental Engineers after cost-of-living adjustment.

How much do you actually take home? See Environmental Engineers take-home pay in Idaho after taxes →

Frequently Asked Questions

What is the real salary for a Environmental Engineers in Idaho after cost of living?

A Environmental Engineers in Idaho earns a median salary of $117,520 per year. After adjusting for Idaho's cost of living (RPP=91.8), the real purchasing power is $128,017 — a +8.9% difference.

Is Idaho expensive to live in?

Idaho's cost of living is 8.2% lower than the national average according to the BEA Regional Price Parities (2022). The RPP index for Idaho is 91.8 (US average = 100).

What are Regional Price Parities (RPP)?

Regional Price Parities (RPPs) are price indexes published by the U.S. Bureau of Economic Analysis (BEA) that measure differences in price levels across states. They are expressed as a percentage of the national average (US = 100). Higher RPP means higher cost of living.

How is the cost-of-living adjusted salary calculated?

The adjusted salary is calculated as: Nominal Salary x (100 / RPP). For a Environmental Engineers in Idaho: $117,520 x (100 / 91.8) = $128,017. This represents what the salary would be worth in a state with average living costs.

Is it better to be a Environmental Engineers in Idaho financially?

From a purchasing power perspective, yes. A Environmental Engineers in Idaho enjoys 8.9% more buying power than the nominal salary suggests, because living costs are below the national average. However, other factors like job availability, career growth, and quality of life also matter.

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