The real estate listings give you the sticker price. They don't give you the monthly reality. We've lived in South Valley long enough to know what things actually cost, and some of it surprised us when we first moved here. Here's the honest breakdown.
Housing
Morgan Hill median home price: $1.07M. Gilroy median: about $900K. San Martin sits somewhere in between, though inventory is thin because it's unincorporated and mostly larger lots.
On a $900K house with 20% down and a 6.5% rate (roughly where 30-year fixed sits in early 2026), your monthly mortgage payment runs about $4,550. Add property tax (1.1 to 1.2%), homeowner's insurance, and possibly Mello-Roos (common in newer Gilroy subdivisions), and you're looking at $5,500 to $6,200/month for the house alone.
Renters: $2,000 to $2,250/month for a two-bedroom apartment. $2,500 to $3,000 for a three-bedroom house. Gilroy is slightly cheaper, Morgan Hill slightly higher.
Utilities
PG&E serves the area. Electricity rates in 2026 run about 32 cents per kilowatt-hour. That's among the highest in the country.
Summer is the killer. When it's 98 degrees in July and August (and it will be), air conditioning pushes electricity bills to $250 to $400/month for a typical 2,000-square-foot house. Winter is more reasonable: $100 to $180.
Natural gas for heating and cooking adds $30 to $80/month depending on season.
Water and sewer together run about $80 to $120/month in Morgan Hill, slightly less in Gilroy. Both cities have tiered water pricing that penalizes heavy use. If you're watering a large lawn, expect to be in the top tier by June.
A household with no solar panels should budget $350 to $500/month for total utilities during peak summer months. Solar changes the math. A lot of homes in South Valley have panels, and there's a reason.
Groceries and food
Groceries cost about 8 to 12% above the national average. A weekly grocery run for a family of four at Safeway, Nob Hill, or Lucky runs roughly $250 to $300.
Trader Joe's in Morgan Hill is a godsend. Costco is in Gilroy on Camino Arroyo. Most families we know split between the two.
Eating out in Morgan Hill: expect $40 to $80 for two people at a sit-down restaurant, before drinks. Gilroy's taco trail is cheaper: $10 to $15 per person for some of the best food in the area.
Gas and transportation
Gas runs $4.30 to $4.60/gallon in South Valley. A 20-gallon fill-up costs about $90.
If you commute to San Jose on 101 daily, figure 60 miles round trip. At current gas prices and average fuel economy (25 mpg), that's about $10/day in gas alone, or roughly $220/month. Add wear and tear, and realistic commuting cost is closer to $350 to $400/month.
Caltrain monthly passes from Gilroy or Morgan Hill to San Jose run about $150. From Morgan Hill to San Francisco, about $400.
Childcare
This one hits hard. Full-time infant daycare in South Valley costs $1,500 to $2,200/month per child. Preschool for ages 3-5 runs $1,200 to $1,800/month.
After-school care through the school district or local providers runs $400 to $700/month. Summer camps range from $200 to $500/week depending on the program.
We hear from parents regularly who moved here for the space and schools but underestimated what childcare adds to the monthly budget.
Insurance
Homeowner's insurance in South Valley runs $1,200 to $2,000/year for a standard policy. Earthquake insurance, which is separate, adds $1,500 to $3,000/year if you choose it. Many homeowners skip it. Wildfire risk is lower here than in the Santa Cruz Mountains, but some east-side properties near the hills carry a premium.
Car insurance for two cars: $250 to $400/month, depending on driving records and vehicles.
The hidden costs
HOA fees: Newer subdivisions in Gilroy (Glen Loma Ranch, Eagle Ridge) charge $150 to $200/month. Some Morgan Hill communities charge $50 to $150. Some older neighborhoods have no HOA at all. Ask before you buy.
Mello-Roos: Special tax districts in newer communities add $3,000 to $5,000/year. This is on top of regular property tax and surprises many first-time buyers.
Landscaping: In a hot, water-restricted climate, maintaining a yard costs money. Professional lawn service runs $150 to $300/month. Drought-tolerant landscaping conversion can cost $5,000 to $15,000 upfront but saves water and maintenance long-term.
Pool maintenance: A lot of homes here have pools (it's hot). Monthly pool service runs $100 to $200.
The total picture
A family of four owning a $950K home in Gilroy, with two kids in preschool and one car commuting to San Jose, should budget roughly:
Mortgage + tax + insurance: $5,800/month
Utilities: $350/month (averaged)
Groceries: $1,100/month
Gas and commute: $400/month
Childcare (two kids): $3,200/month
Car insurance: $300/month
Misc (HOA, maintenance, etc.): $400/month
Total: approximately $11,550/month, or $138,600/year.
That requires a household income of roughly $190,000 to $210,000 before taxes to be comfortable. The median household income in Morgan Hill is $152,000. In Gilroy, it's about $115,000. Many families here are dual-income households where the math only works with two paychecks.
Is it worth it?
We think so. But we also think people should come in with clear numbers, not wishful math. South Valley is expensive because California is expensive and the Bay Area is extremely expensive. Within the Bay Area, this is one of the better values. But "better value" still means six figures in housing alone.
Know the numbers. Budget honestly. Then enjoy the garlic smell, the wineries, and the Saturday farmers market without checking your bank app every morning.
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Sources: Salary.com cost of living data for Morgan Hill and Gilroy (2026), PG&E residential rate schedules, Santa Clara Valley Water District rate structure, BestPlaces.net cost of living index, Caltrain fare tables