HELOCs in Fontana, CA

Home equity in Fontana by the numbers: what a typical home could support, what owners pay, and the local issues that affect a HELOC. From a loan officer based in Irvine.

Reviewed by Shawn Way, NMLS #1007298★ 4.9 from 111 reviewsUpdated October 28, 2026

Short answer

The median owner-occupied home in Fontana is worth $586,800. With half of that still owed, a lender allowing 85% combined loan-to-value would support a line of about $205,380. HELOC rates for 720+ credit run about 8.00%–9.75% APR as of October 28, 2026.

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Fontana at a glance

	Fontana	San Bernardino County
Median home value (owner-occupied)	$586,800	$475,000
Owner-occupied homes	66.8%	61.5%
Monthly owner costs, with a mortgage	$2,608	$2,274
Monthly owner costs, no mortgage	$726	$628
Median household income	$102,821	$82,184
People per household	3.66	3.21

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024 for Fontana, 2019–2023 for the county). Fontana population: 221,223. Census QuickFacts.

Among the 5 San Bernardino County cities on this site, Fontana ranks 3rd for median home value and 1st for the share of owner-occupied homes.

Put this into your own numbers.

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How much a typical Fontana home could support

At the median value of $586,800 and an 85% combined loan-to-value cap:

Mortgage balance	Possible line	Interest-only on $100K drawn at 7.75% APR
$0 (paid off)	$498,780	$646
$146,700	$352,080	$646
$293,400	$205,380	$646
$410,760	$88,020	$568

Your own home's value and your income set the real number. Run your numbers.

Keeping a low rate in Fontana

A Fontana owner with a typical $586,800 home and $293,000 left on a 3.25% mortgage needs $75,000 for a remodel. Keeping the mortgage and adding a HELOC at 7.75% APR on a 20-year payoff costs about $2,044 a month in total. A cash-out refinance of $368,000 over 30 years at an illustrative 6.5% interest rate would cost about $2,326 a month in principal and interest for 360 months. Compare your own numbers.

Living in Fontana: what lenders notice

Fontana grew quickly from the 1990s on, and newer northern neighborhoods often carry Mello-Roos taxes that lenders count in your housing costs. Households average about 3.7 people, among the largest here, and garage conversions and ADUs are common ways families add room. About 67% of homes are owner-occupied.

What the numbers say about Fontana

Fontana's median home value is 24% above the San Bernardino County median of $475,000.
66.8% of homes are owner-occupied, above the county's 61.5%. Long-time owners with large equity are the core HELOC borrowers here.
Owners who've paid off their mortgage still spend a median $726 a month on property taxes, insurance and fees. On a paid-off home, a HELOC sits in first position and usually gets the best pricing.
Households average 3.66 people, above the county's 3.21. Multigenerational families often use a HELOC to add an ADU or junior ADU.
Median monthly costs for owners with a mortgage run $2,608, about 30% of the median household income of $102,821. Lenders look at total debts against income; most want them under about 43%.

California rules that affect your HELOC

California is a community property state, so a spouse usually signs the HELOC documents even if not on the loan.
A HELOC doesn't trigger a Proposition 13 reassessment; your property tax base stays the same.
San Bernardino County's 2026 conforming loan limit is $832,750 for a one-unit home. It caps a conventional cash-out refinance, not a HELOC. FHFA.
Every lender requires proof of homeowners insurance before closing. With insurers pulling back in fire-prone parts of California, line up coverage before you apply.

Working with a loan officer

Shawn Way works from Irvine and lends throughout Southern California, comparing HELOC and cash-out options across more than 180 lenders. Get your HELOC rate or call (949) 569-7019.