Cost of Living in Lake San Marcos, CA
Population 4,996 · California · Data vintage 2023
(100 = US avg)
Lake San Marcos's housing market reflects its status as a high-earning metro: $860,000 for a typical home, 182% above the US median, paired with household incomes around $100,676 that put it in the upper third of the state.
Located <5 miles east of Carlsbad, Lake San Marcos falls within that metro's commuting orbit. Median home values run roughly 26% lower than Carlsbad's $1.2 million.
Cost Overview
Scale: 100 = US national average. Green < 90, Red > 110.
About the Cost of Living in Lake San Marcos
The median home value in Lake San Marcos is $859,600 — 182% above the national median of $305,000. Median rent runs $2,615/month, 99% higher than the national median of $1,314/month. The median household income of $100,676/year is 35% higher than the US median of $74,580. The local unemployment rate is 3.4%, below the national average of 4.8%. California's top state income tax rate is 13.3% and the combined sales tax is 8.7%. Overall, Lake San Marcos has a cost of living index of 249 versus the US average of 100, meaning it is 149% more expensive.
Lake San Marcos has limited residential data
Detailed housing and income data is limited for this location. Here are the nearest cities with full cost of living data:
🏠 Housing
HUD Fair Market Rents by Bedroom
💰 Estimated Monthly Budget
Estimates based on median data and national averages. Actual costs vary.
🛒 Food & Groceries
National BLS average prices (2023). Local prices may vary.
🚗 Transportation
Commute Mode
⚡ Utilities
📋 Taxes
💼 Income & Employment
🎓 Education
👥 Demographics
💨 Air Quality
EPA AQS 2023 — county-level monitoring data
Frequently Asked Questions
What is the cost of living in Lake San Marcos, CA?
Lake San Marcos has a cost index of 249 (100 = national average). It is 149% above the national average.
What is average rent in Lake San Marcos, CA?
The median gross rent in Lake San Marcos is $2,615 per month based on 2023 Census data.
What is the average home price in Lake San Marcos?
The median home value in Lake San Marcos is $859,600 according to 2023 Census ACS data.
What is the median income in Lake San Marcos?
The median household income in Lake San Marcos is $100,676 per year (2023 ACS 5-year estimates).
What is the sales tax in Lake San Marcos, CA?
The combined state and local sales tax rate in Lake San Marcos is 8.7%. The California state income tax top rate is 13.3%.
Is Lake San Marcos, CA affordable?
Lake San Marcos is above average in cost of living, with an index of 249 — about 149% higher than the national average.
Lake San Marcos at a Glance
- Population
- 4,996
- Median Income
- $100,676
- Home Value
- $859,600
- Median Rent
- $2,615/mo
- Unemployment
- 3.4%
- Sales Tax
- 8.7%
Nearby Cities
Explore county-level cost of living data
California Rankings
Similar Cost Cities
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