Mile Square Regional Park

Fountain Valley, Orange County, CA

Parking$3 weekdays, $5 weekends
Source
DogsOn leash
Source
Hours7 a.m.; closes 6 or 9 p.m. by season
Source
Size
161 acres Source
Managed by
OC Parks

About Mile Square Regional Park

A 607-acre urban park in Fountain Valley with golf courses, sports fields, an archery range, and a nature area. Source

Mile Square Regional Park is an urban park located in the City of Fountain Valley and totals 607 acres of land. Within the park's boundaries are two regulation golf courses, three soccer fields, three baseball and three softball diamonds, an archery range and a nature area. Also, there are two fishing lakes, concession-operated bike and paddle boat operations, a wide expanse of picnic areas as well as numerous picnic shelters.
— Mile Square Regional Park, official page (checked Oct 16, 2026)

Know before you go

Mile Square Regional Park covers 161 acres in Fountain Valley, Orange County. OpenStreetMap shows 14 parking areas, including Lot D and Overflow Parking, plus 7 restrooms and 1 drinking fountain. The closest mapped bus stop is Edinger-Los Gatos, at the park edge.

Facilities

  • BBQ Grills
  • Drinking Water
  • Picnic Area
  • Playground
  • Restrooms
  • Splash Pad
  • Volleyball

Facility details: OpenStreetMap

Mile Square Regional Park at a glance

PPPPPPPPPPPPPPWCWCWCWCWCWCWCWi
  • PParking · 14: Lot D, Overflow Parking
  • WCRestrooms · 7
  • WDrinking water · 1
  • iVisitor center · 1: Park Office

© OpenStreetMap · CPAD · About this map

Getting to Mile Square Regional Park by bus

Stops within a quarter mile of Mile Square Regional Park; confirm times with the transit agency.

Compared with nearby parks

Among the 4 other parks in this guide within 10 miles, Mile Square Regional Park is number 3 of 5 by size at 161 acres. It is the only one of them with splash Pad.

How comparisons work

Rules & reservations

Official park page
  • Nature Area

    The Nature Area is open daily from 7 a.m. to 3 p.m. Source

Fall–winter: 7 a.m. to 6 p.m. Spring–summer: 7 a.m. to 9 p.m.

Map & directions

16801 Euclid St., Fountain Valley, CA

1Location overview · map data © OpenStreetMap

33.722878, -117.939473Get directions

Nearby parks

Straight-line distance
Talbert Regional Park5.4 miHarriett M. Wieder Regional Park5.4 miUpper Newport Bay Nature Preserve6.3 miPeters Canyon Regional Park10.7 miRalph B. Clark Regional Park12.0 mi

Continue exploring

Orange County parks Playgrounds

Sources & verification

Last verified: Oct 16, 2026
  1. California Protected Areas Database (CPAD) 2026aname, county, agency, access, acres
  2. OC Parks park pageofficial_url, hours, hours_note, fees, dogs, address, description
  3. OpenStreetMap facilities and trailsfacilities.bbq-grills, facilities.drinking-water, facilities.picnic-area, facilities.playground, facilities.restrooms, facilities.splash-pad, facilities.volleyball
  4. U.S. Census Bureau place boundariescity
  5. OpenStreetMap: parking, restrooms, water, trailheads, trail lines, and bus stopsvisit
  6. Official park page (introduction excerpt)intro
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