California · San Diego-Chula Vista-Carlsbad, CA metro area

Buying a home in San Marcos, California

In San Marcos, the median value of owner-occupied homes is $868,000, San Diego County's effective property tax rate is 0.68%, and a purchase mortgage carried a median $9,740 in total loan costs in 2025.

Data as of : Census ACS 2020-2024, Census Vintage 2024, HMDA 2025, HUD FY 2027. Sources

San Marcos home costs, fact by fact

About San Marcos

It lies in the San Diego-Chula Vista-Carlsbad, CA metro area and has 96,620 residents. Median gross rent is $2,348 a month, and 63.7% of homes are owner-occupied.

Reading the San Marcos figures

San Marcos reports an estimated median of $868,000, higher than the California statewide figure of $770,700 and in the company of cities such as Fullerton ($902,600), Hawthorne ($863,400) and Hayward ($854,400). San Diego itself comes in with $906,700, and Los Angeles reports $921,200. Orange reports a still higher $945,800, while Anaheim falls below San Marcos with $831,200 and Ventura follows with $827,300. As elsewhere, these are owners' estimates and not sale prices, and California has 104 covered cities, so the list is only a sample.

San Marcos renters typically pay $2,348 a month, a little above San Diego's $2,313, while Hayward's $2,391 is slightly higher than San Marcos. Lake Forest reaches $2,672, a clear step up, and Oakland is lower at $1,979. HUD's benchmark for the San Diego area is $2,823, above the median rent here. Hawthorne, at $863,400, sits almost level with San Marcos on value, yet its rent is $1,782 against San Marcos's $2,348, which shows how similar values can come with different rent levels.

Owners are the larger group, with 63.7% of homes owner-occupied. That compares with 47.3% in San Diego, 36% in Los Angeles and just 27.2% in Hawthorne, and it sits below Lake Forest's 70.5%. San Leandro shows 58.1% and Hayward shows 58%, the nearest matches on the low side.

Westminster reports $858,300 with a rent of $2,168, and Hayward $854,400 with a rent of $2,391, so similar value estimates come with rents on both sides of San Marcos's. San Leandro's $844,200 and rent of $2,186 are lower on both counts.

San Marcos counts 96,620 residents, well below the 344,561 residents of Anaheim, the 443,554 of Oakland and the 1,404,452 of San Diego, and closer to Fullerton's 140,054, Orange's 137,941 or Ventura's 109,831. Value estimates do not track size: Ventura, with a larger population, reports $827,300, lower than San Marcos, while Lake Forest, with 87,159 residents, reports $937,000, higher. Tenure varies too. Westminster has a 53.4% owner share, Anaheim 46.2% and Ventura 55.9%, each lower than San Marcos. A reader comparing San Marcos with these cities will find the biggest contrast not in the price but in the tenure mix.

For taxes, San Diego County's 0.68% levy is assessed against $854,700, a median annual tax of $5,774. San Marcos's estimated median is a little above the county median, so a typical bill here could run higher than that county figure. In the county, 17,087 mortgages recorded in 2025 saw lenders charge a middle figure of $9,740, and the central spread ran from $6,863 to $17,069, so offers from several lenders are worth collecting. The metro area ranks 18th in the country, with 3,298,799 residents, and San Marcos counts 96,620.

Calculate for California

If you buy

California state transfer tax

California has no state transfer tax; counties and cities may charge one.

Price$770,700
State transfer taxnot computed
Who paysSet by the purchase contract

Default price: the California median value of owner-occupied homes, $770,700 (Census ACS 2025). Not computed: No state tax. The tax is set by county and city, so it cannot be computed from the state alone. Who pays: Neither the state statute nor the City of Los Angeles FAQ assigns the tax; the purchase contract and escrow instructions decide. Not included: county and city transfer taxes, recording fees, title insurance and lender charges. California transfer tax guide · all 50 states.

If you sell

Capital gain and the federal tax on it

Same federal rule in every state: Section 121 of the Internal Revenue Code excludes up to $250,000 of gain on a main home ($500,000 for a married couple filing jointly).

Capital gain$350,000
Section 121 exclusion$250,000 (limit $250,000)
Taxable gain$100,000
Type of gainLong-term (owned over 1 year), 15% chosen
Federal tax on the gain$15,000

Section 121 excludes $250,000; the rest is taxable.

Gain = sale price minus your adjusted basis (purchase price, buying costs and improvements); selling expenses reduce it (IRS Publication 523). Long-term rates for sales in 2026, by taxable income including the gain (IRS Rev. Proc. 2025-32, section 4.03): 0% up to $49,450 single or $98,900 married filing jointly, 15% up to $545,500 single or $613,700 jointly, 20% above. Not included: California state income tax on the gain (not computed), the net investment income tax, depreciation recapture on a rental or home office, and the reduced exclusion for an early sale. Agent commissions are negotiated and never set by law. Capital gains on a home sale.

Questions about buying a home in San Marcos

How much is property tax in San Marcos?

Homeowners in San Diego County pay a median $5,774 a year in property tax, 0.68% of the county median home value of $854,700 (Census ACS 2020-2024). Your bill depends on your assessed value and local rates.

What are closing costs on a mortgage in San Marcos?

Home-purchase mortgages in San Diego County carried median total loan costs of $9,740 in 2025; half of the 17,087 loans fell between $6,863 and $17,069 (HMDA). Total loan costs are the lender and settlement-service charges of the Closing Disclosure; transfer taxes and prepaid items come on top.

Is there a transfer tax when you buy a home in San Marcos?

California has no state transfer tax. Counties may charge $0.55 per $500 of value under the Documentary Transfer Tax Act, and cities such as Los Angeles add their own, with Measure ULA adding 4% or 5.5% on very high-priced sales.

Is it cheaper to rent or buy in San Marcos?

It depends on your mortgage rate, down payment and how long you stay. As a benchmark, the median value of owner-occupied homes in San Marcos ($868,000) equals 30.8 years of the median gross rent ($2,348 a month), both from Census ACS 2020-2024.

What natural hazards affect home insurance in San Marcos?

Across California, the main hazards for home insurance are earthquake, wildfire, flood and landslide, and the insurer of last resort is California FAIR Plan. A standard California homeowners policy does not cover earthquake damage; insurers must offer earthquake coverage (Insurance Code 10081), and the FAIR Plan sells limited fire coverage up to $3 million for residential policyholders.

Run your own numbers: rent vs buy calculator · closing costs calculator.

California rules that apply in San Marcos

Other large cities in California

Who licenses each trade in California · All covered cities

Sources

California · All states · Federal guides