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Sell my land in
Union City.

Its Census reference point is in Bay Terraces/Lower Santa Clara Valley, within Central California Foothills and Coastal Mountains. Hayward lies about 4.9 miles west of Union City by reference-point distance.

A local understanding of the land. A straightforward conversation about what comes next.

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Larry G · “The Land Buyer”40+ years in real estate
Aerial view of Union City in September 2018 — California
A VIEW OF THE AREA

Aerial view of Union City in September 2018 — California

Photo & credit
THE SETTINGBay Terraces/Lower Santa Clara Valley
COUNTY GEOGRAPHYAlameda County
YOUR STARTING POINTOpen Union City on the map

THE UNION CITY LAND BRIEF

Land in the
Bay Terraces/Lower Santa Clara Valley setting.

Union City city has 19.4 square miles of land in Alameda County. Its Census reference point is in Bay Terraces/Lower Santa Clara Valley, within Central California Foothills and Coastal Mountains.

Oak woodland, chaparral and grassland occupy foothills and low coastal mountains around the Central Valley. Narrow agricultural valleys interrupt this landscape of dry summers and wetter winters.

Regional context: Central California Foothills and Coastal Mountains ↗ · Classification at the Census reference point

Union City and Alameda County

Union City is associated with Alameda County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.

Alameda County

Union City by land and water

The Census records 0 square miles of water within Union City, or 0% of its total area. It is 10.2 percentage points lower than the 10.2% recorded for Alameda County. This is geographic context; waterfront status and usable land must be checked at the parcel.

For scale, Union City city has 42.3% of the land area of nearby Hayward city (45.8 square miles). These areas describe boundaries, not comparable property prices.

FROM LOCAL CONTEXT TO YOUR PARCEL

Three questions for
Union City land.

These starting questions follow this location’s jurisdiction, regional setting, and nearby geography. The answers come from the property itself.

01

Locate the parcel within Union City

Use a tax bill, deed, or assessor’s parcel number to pin down the land in Union City. Check the Alameda County geography against the actual property location.

02

Read the Bay Terraces/Lower Santa Clara Valley setting

Bay Terraces/Lower Santa Clara Valley belongs to Central California Foothills and Coastal Mountains. How much of the property is valley bottom compared with hillside, and where is its documented road connection?

03

Check the route, beyond Hayward

Hayward is 4.9 miles west of the Union City reference point. That geographic proximity does not establish a drivable route or legal access. Which road reaches your land, and is the right to use it recorded?

OPEN THE RIGHT MAP. FIND THE RIGHT RECORD.

Union City resources,
ready to explore.

The topographic link opens at this location’s reference point. Government links identify the actual named jurisdiction in the Census directory.

MAP CENTERED ON UNION CITY

USGS National Map

Begin at 37.6028° N, 122.0188° W. Locate your parcel and inspect the available terrain and geographic layers.

Explore Union City ↗CENSUS-LISTED GOVERNMENT WEBSITE

City Of Union City

Use this municipal government’s site to identify the relevant office and its current instructions. Confirm that it administers the record or land-use question for your parcel.

Open City Of Union City ↗CENSUS-LISTED GOVERNMENT WEBSITE

County Of Alameda

Use this county government’s site to identify the relevant office and its current instructions. Confirm that it administers the record or land-use question for your parcel.

Open County Of Alameda ↗THIS GEOGRAPHY’S CENSUS PROFILE

Union City data

View Census information selected by this city’s geographic identifier. Available statistics depend on the geography and survey.

View the geography profile ↗THE REGIONAL MAP SOURCE

Bay Terraces/Lower Santa Clara Valley

Explore the agency mapping behind the Central California Foothills and Coastal Mountains context in this guide. Use the detailed map to identify the unit at your actual property.

View regional mapping ↗
Additional California landowner resources

California State Geoportal

Official state geospatial datasets for land, water, boundaries, and environmental research.

California fire-hazard maps

State Fire Marshal information and map access for current Fire Hazard Severity Zones.

FEMA flood mapsUSDA Web Soil SurveyWetlands mapper

PLACES, DISTANCES & CONNECTIONS

Around Union City.

Hayward lies about 4.9 miles west of Union City by reference-point distance. The diagram positions nearby communities by their actual direction and reference-point distance.

AROUND YOUR COMMUNITY

Union City in context

NSEWHayward · 4.9 miles1Fairview · 5.4 miles2Newark · 6.8 miles3Cherryland · 7 miles4Sunol · 7.7 miles5Castro Valley · 7.7 miles6OUTER RING: 7.7 MILES
  1. 1
    Hayward4.9 mi · city
  2. 2
    Fairview5.4 mi · census-designated place
  3. 3
    Newark6.8 mi · city
  4. 4
    Cherryland7 mi · census-designated place
  5. 5
    Sunol7.7 mi · census-designated place
  6. 6
    Castro Valley7.7 mi · census-designated place
Positions are calculated from Census reference points. Crowded labels use a leader line to their exact dot. Straight-line distances within California; no roads, travel times, or service boundaries are implied.
The Alameda County guideExplore CaliforniaSearch another location

QUESTIONS GROUNDED IN THIS PLACE

Your Union City
land questions.

Have a tax bill, an inherited deed, or simply a map pin? Start with what you have.

What should I send for land in Union City?+

Send the parcel number or legal description, approximate acreage, and a map pin showing the property in Alameda County. Union City’s 19.4 square miles of land include many different property situations; the exact parcel is what we review.

Is every Union City property in Bay Terraces/Lower Santa Clara Valley?+

No. Bay Terraces/Lower Santa Clara Valley is the regional classification at the Census reference point. The Union City boundary and individual properties can cross landscape transitions. Open the regional source and the topographic map, then locate the actual parcel before applying regional context.

Can I use Hayward as a reference for my land?+

It can help explain the location: its Census point is about 4.9 miles west of Union City’s. That distance is not a driving route, utility connection, or comparable-sale adjustment. Share the actual access road and parcel records so we can review your property on its own facts.

Can I request an offer without being near Union City?+

Yes. Begin online with the property location and ownership details. Tell Larry G and the team what you know about the land, access, and any co-owners. We review the parcel before deciding whether to propose a purchase; if a sale moves forward, the closing company can explain remote signing arrangements.

Sources for this guide. 2025 U.S. Census geography supplies local names, area measurements, reference points, and map boundaries. Regional context uses EPA Level IV ecoregions mapping. Government links come from the Census 2026 Government Units Listing and are not individually certified by USA Land Offers. Read the mapping methods, coverage, and source details →

This guide describes a service area, not a local office. Maps and regional facts do not establish an individual parcel’s boundaries, permitted use, risk, or value.

GREAT LAND. GOOD PEOPLE.

Your land in Union City.
Your next chapter.

Tell Larry G and the team what you own and what you have in mind. Start with a free property review and a straightforward conversation.

No obligation to sell 40+ years in real estate
Request my cash offer(855) 956-2650