Oklahoma City vs. Perth: Detailed 2026 Cost of Living & Quality Comparison

This report provides a detailed comparison of the cost of living and quality of life between Oklahoma City, USA, and Perth, Australia, based on available data. The analysis covers key factors including economic conditions, housing affordability, quality metrics, and specific living expenses to offer a comprehensive overview for potential residents or investors.

Perth demonstrates a significantly higher average net salary after taxes ($4,148.60 AUD or $2,863.30 USD equivalent) compared to Oklahoma City ($2,863.30 USD). However, Perth's economy shows slightly higher GDP per capita ($59,600 AUD) and a marginally higher population growth rate (1.13% vs. 0.92%). Both cities offer comparable purchasing power indices (150.11 for Perth vs. 140.00 for Oklahoma City), suggesting similar buying power potential despite the currency difference.

Perth presents dramatically higher housing costs than Oklahoma City. The average property price per square meter in Perth city center is approximately $6,425.36 AUD ($4,300 USD), compared to Oklahoma City's $1,000.00 USD. This translates to a much higher property price to income ratio in Perth (6.83) versus Oklahoma City (0.92). While both cities have similar mortgage interest rates (5.85% in Perth vs. 4.50% in Oklahoma City), the substantial difference in property values makes Perth significantly less affordable.

Perth scores slightly higher on the overall Quality of Life Index (196.27 vs. 196.27). Key quality metrics show Perth has advantages in safety (57.77 vs. 50.00), healthcare (71.88 vs. 60.00), and climate comfort (95.71 vs. 70.00). Oklahoma City has lower pollution levels (28.27 vs. 30.00), though both cities maintain relatively clean environments. Commute times are longer in Perth (40.92 minutes) compared to Oklahoma City (25.00 minutes).

Perth generally has higher costs across most living categories. Food expenses are comparable between the two cities. Transportation costs show similar monthly public transit passes ($99.40 AUD/$70.00 USD vs. $63.00 USD), though car ownership costs are higher in Perth due to fuel prices ($1.26 AUD/L vs. $0.90 USD/L) and vehicle purchase prices. Utilities are slightly more expensive in Perth ($181.44 AUD/$121.30 USD vs. $120.00 USD). Childcare represents a significant cost difference, with Perth's monthly fees ($2,280.89 AUD/$1,527.26 USD) nearly double Oklahoma City's ($1,000.00 USD).

Both cities offer distinct advantages for different priorities. Perth provides higher potential earnings but comes with significantly higher living expenses, particularly for housing. Oklahoma City offers a substantially lower cost of living with more affordable housing, though potentially lower earning potential. Quality of life factors like healthcare and safety are superior in Perth, while Oklahoma City offers advantages in terms of lower pollution levels and potentially more affordable lifestyle choices.