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Water and Wastewater Treatment Plant and System Operators Salary in Connecticut: Cost of Living Adjusted (2025)

Last updated: 2025 BLS data · Page refreshed:

What does a Water and Wastewater Treatment Plant and System Operators salary really buy you in Connecticut?

Connecticut is 6.4% pricier than the US average

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

Nominal Salary
$78,820
Median annual (2025)
-6.0%
Real Purchasing Power
$74,078
COL-adjusted (RPP=106.4)

Connecticut Cost of Living Index

Connecticut's Regional Price Parity (RPP) is 106.4, meaning prices are 6.4% higher the national average. A Water and Wastewater Treatment Plant and System Operators earning $78,820 in Connecticut has the equivalent purchasing power of $74,078 in an average-cost US state.

CT: 106.4
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 Connecticut's cost of living.

Percentile Nominal Salary COL-Adjusted Difference
10th Percentile (P10) $60,900 $57,236 $-3,663
25th Percentile (P25) $64,670 $60,780 $-3,889
Median (P50) $78,820 $74,078 $-4,741
75th Percentile (P75) $93,340 $87,725 $-5,614
90th Percentile (P90) $98,850 $92,904 $-5,945
Key Insight

While $78,820 sounds high, Connecticut's elevated cost of living erases 6% of that salary's purchasing power. Your real buying power is $74,078. Consider whether the higher pay offsets the higher costs.

What the Cost-of-Living Data Says

Connecticut Is a High-Cost State

RPP 106.4

Connecticut's RPP of 106.4 puts it 6.4% above the national baseline cost of living. A Water and Wastewater Treatment Plant and System Operators needs that premium in nominal pay just to maintain the same purchasing power as an average-cost state.

Meaningful Purchasing-Power Shift

-6.0%

After applying Connecticut's RPP, the $78,820 median salary translates to $74,079 in real terms — a 6.0% loss. That difference can cover several months of expenses over a year for a Water and Wastewater Treatment Plant and System Operators.

Top-Quartile Adjusted Earnings in Connecticut

#3 / 50

Ranked on COL-adjusted median pay for Water and Wastewater Treatment Plant and System Operators, Connecticut places #3 of 50 states — top quartile. Either nominal wages run high, cost of living runs low, or both.

Best States for Water and Wastewater Treatment Plant and System Operators (After Cost of Living)

Where does Water and Wastewater Treatment Plant and System Operators salary stretch the furthest? Top 10 states ranked by COL-adjusted median salary.

1. Nevada
$84,481
RPP 96.4
$76,427
RPP 97.7
$74,078
RPP 106.4
$73,588
RPP 109.8
$72,684
RPP 112.5
$72,531
RPP 102.3
$72,389
RPP 108.8
8. Iowa
$68,993
RPP 88.4
$68,851
RPP 92.3
10. Wyoming
$68,835
RPP 91.9

Connecticut ranks #3 out of 50 states for Water and Wastewater Treatment Plant and System Operators after cost-of-living adjustment.

How much do you actually take home? See Water and Wastewater Treatment Plant and System Operators take-home pay in Connecticut after taxes →

Frequently Asked Questions

What is the real salary for a Water and Wastewater Treatment Plant and System Operators in Connecticut after cost of living?

A Water and Wastewater Treatment Plant and System Operators in Connecticut earns a median salary of $78,820 per year. After adjusting for Connecticut's cost of living (RPP=106.4), the real purchasing power is $74,078 — a -6.0% difference.

Is Connecticut expensive to live in?

Connecticut's cost of living is 6.4% higher than the national average according to the BEA Regional Price Parities (2022). The RPP index for Connecticut is 106.4 (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 Water and Wastewater Treatment Plant and System Operators in Connecticut: $78,820 x (100 / 106.4) = $74,078. This represents what the salary would be worth in a state with average living costs.

Does the high cost of living in Connecticut offset the salary?

Partially — a Water and Wastewater Treatment Plant and System Operators's nominal salary of $78,820 in Connecticut has 6.0% less purchasing power due to higher living costs. The real value is $74,078. However, Connecticut may offer better career opportunities, networking, and industry access.

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