ZIP Code 95721 in Echo Lake, CA

Data Last Updated: January 1, 2026
City:Echo Lake, California
City Alias:Twin Bridges
County:El Dorado County
Timezone:Pacific (GMT -08:00)
Local Time:11:20:00 PM
Population:32 [See All]
Area Codes:209 / 350 / 530
Classification:PO Box
Coordinates:38.8196, -120.0887
Land Area:4.521 sq mi
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95721 - Echo Lake, CA

ZIP Code 95721, Echo Lake

Vacation Island
LocationEl Dorado County, CA
Area0.3 sq mi
Population32
Households24
PO Boxes0 No PO Boxes
Median Age48.0 years
Seasonal Housing89%
ZIP CreatedBefore Oct 2004
Key Facts
  • Only 24 of 325 housing units are occupied year-round, with 89% seasonal vacancy
  • The entire community consists of 32 permanent residents across 0.32 square miles
  • Mail delivery uses a Highway Contract Route rather than traditional street delivery
  • Echo Lakes Road is the only street name in postal records for this ZIP code
  • Twin Bridges appears as an alternate mailing name, referencing nearby Highway 50 landmarks
  • This is a PO Box ZIP code (Classification P), meaning the ZIP contains only PO Box addresses rather than street delivery routes

Seasonal Mountain Community

Echo Lake sits at 7,400 feet in the Sierra Nevada, accessible only via Echo Lakes Road off Highway 50. The 32 permanent residents occupy just 24 of the 325 total housing units, making this one of California's most seasonal communities. The rest are vacation cabins, with 89% sitting empty outside summer months.

Highway Route Delivery

The post office serves this unusual settlement through Highway Contract Route delivery along Echo Lakes Road. There's no traditional street grid. Properties cluster along the road leading to the lake, where many cabins sit on the far shore, reachable only by boat or hiking trail. That geography explains why just one street appears in postal records.

High Country Retreat

Echo Lake and Upper Echo Lake offer some of the most remote lakefront property accessible by car in the greater Lake Tahoe region. The median age of 48 reflects owners who've accumulated enough wealth to maintain a Sierra high country cabin. Many properties here aren't primary residences but rather family retreats passed down through generations.

Twin Bridges Connection

The Twin Bridges alternate name refers to the historic bridges on Highway 50 near the turnoff. Both names appear on mail sent here. The post office designation acknowledges that this isn't quite a town in the traditional sense, but rather a collection of seasonal properties that happens to have its own ZIP code.

Street Name Patterns

Geographic Landmark

Echo Lakes Road is the only street in postal records, reflecting the community's simple geography as a single mountain access road leading to the lakes. The lack of a traditional street grid is typical of remote Sierra Nevada vacation settlements where properties spread along a single route.

Nearby Areas

McKinney Estates McKinney Shores Chamberlands Lakeside Trail Sans Souci Heights
Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 95721 has 32 residents and 24 households (average 1.33 persons per household). The median age is 48.0 years, significantly older than the state (37.5) and significantly older than the nation (38.8). The gender split is 62.5% male and 37.5% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (75.0%, much higher than the state average of 41.2% and well above the national average of 61.6%) and Hispanic or Latino (18.8%); Hispanic or Latino residents make up 18.8%, which is much lower than the state average (39.4%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:32Source: Census DHC
2024 ACS Population Estimate:0Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:7.1 people per sq mile
Average Income:$0Source: Census ACS
Households:24Source: Census DHC
Average House Value:$0Source: Census ACS
Persons Per Household:1.33Source: Census DHC
Average Family Size:2.23Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group20102011210220132014201520162017201820192020202120222023
Census ACS Population Estimate--141314131313141500000
Decennial Census37------------------32------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 48

Male Median Age: 45

Female Median Age: 57.5

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male010102231321301000
Female011100100020501000
Total021202331341802000
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:2472.73%
Black:00%
Hispanic:*618.18%
Asian:26.06%
American Indian:00%
Hawaiian:00%
Other:13.03%
Total:33100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:2062.50%45.0 years
Females:1237.50%57.5 years
Total:32100%48.0 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:00%
Native, born in PR, Island Areas, or abroad:00%
Foreign born, naturalized U.S. citizen:00%
Foreign born, not a U.S. citizen:00%
Total Population:0100%
Total Native Population:00%
Total Foreign-born Population:00%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Housing & Affordability


In 2023, the median home value is $0, which is considerably lower than the state median ($695,400), and above its 2019 pre-pandemic level by $0. The median gross rent is $0, which is far less than the state median ($1,956), and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. The vacancy rate is 100.00%, which is considerably higher than the state rate (7.55%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group2011210220132014201520162017201820192020202120222023
Median Home Value$0$0$0$0$0$0$0$0$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00%
$500 to $999:00%
$1,000 to $1,499:00%
$1,500 to $1,999:00%
$2,000 to $2,499:00%
$2,500 to $2,999:00%
$3,000 or more:00%
No Rent:00%
Total:0100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group2011210220132014201520162017201820192020202120222023
Median Rent$0$0$0$0$0$0$0$0$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):00%
Owner Occupied (free and clear, no mortgage):00%
Renter Occupied:00%
Total Occupied Housing Units:0100%

Occupied Housing Units:00.00%
Vacant Housing Units (not graphed):229100.00%
Total Housing Units:229100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:229100.00%
Multi-Family Units:00.00%
Other Units:00%
Total Housing Units:229100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


Insufficient data for educational attainment. Insufficient data for health insurance coverage. Insufficient data for poverty. Insufficient data for school enrollment.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:00%
9th to 12th grade, no diploma:00%
High school graduate (includes equivalency):00%
Some college, no degree:00%
Associate's degree:00%
Bachelor's degree:00%
Graduate or professional degree:00%
Total:0100%
High school or higher:00%
Bachelor's degree or higher:00%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:00%
Public Insurance:00%
No Insurance:00%
Total:0100%
Has Health Insurance:00%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group2011210220132014201520162017201820192020202120222023
% of People in Poverty-666,666,666.0%-666,666,666.0%-666,666,666.0%-666,666,666.0%-666,666,666.0%-666,666,666.0%-666,666,666.0%-666,666,666.0%-666,666,666.0%0.0%0.0%0.0%0.0%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00%
Kindergarten:00%
Elementary school (grades 1-8):00%
High school (grades 9-12):00%
College or graduate school:00%
Total:0100%
Early Childhood:00%
K-12 (Primary & Secondary School):00%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 95721 is designated for PO Box delivery only; business establishment and employment data are not available.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:0Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:0Source: CBP
1st Quarter Payroll:$0Source: CBP
Annual Payroll:$0Source: CBP
# of Employees:0Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 95721 is located in El Dorado County, California, within the Sacramento-Roseville-Folsom, CA Metropolitan Statistical Area (CBSA 40900) and California's 3rd Congressional District. This Metro area has a population of 2,406,563 people, about 0.00% of whom live in ZIP Code 95721. It covers 4.521 sq mi of land and a water area of 0 sq mi.

CBSA Name:Sacramento-Roseville-Folsom, CASource: Census
CBSA Number:40900Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:2,406,563Source: Census
MSA:Sacramento-Yolo, CA CMSASource: Census
Land Area:4.521 sq miSource: Census
Water Area:--Source: Census
Congressional District:03Source: USPS
Congressional Land Area:6183.59 sq miSource: Census
PMSA:Sacramento, CA PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:--Source: Census
Place Name:--Source: Census

Adjacent & Nearby ZIP Codes


95722 | | 95720

Schools in ZIP Code 95721


We could not locate which school district 95721 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Lake Tahoe Environmental Science Magnet 1095 San Bernardino Ave.
South Lake Tahoe, CA 96150
District: Lake Tahoe Unified School DistrictNearby
Mt. Tallac High 1735 Lake Tahoe Blvd.
South Lake Tahoe, CA 96150
District: Lake Tahoe Unified School DistrictNearby
South Tahoe High 1735 Lake Tahoe Blvd.
South Lake Tahoe, CA 96150
District: Lake Tahoe Unified School DistrictNearby
Tahoe Valley Elementary 943 Tahoe Island Dr.
South Lake Tahoe, CA 96150
District: Lake Tahoe Unified School DistrictNearby
Sierra House Elementary 1709 Remington Trail
South Lake Tahoe, CA 96150
District: Lake Tahoe Unified School DistrictNearby
Tahoe Prep Academy 2478 Meyers Grade Rd
South Lake Tahoe, CA 96150
District: Private SchoolNearby
Squaw Valley Academy 235 Squaw Valley Rd
Olympic Valley,, CA 96146
District: Private SchoolNearby
Tahoe Expedition Academy 9765 Schaffer Mill Rd
Truckee, CA 96161
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 95721


Lake Tahoe Community College One College Drive
South Lake Tahoe, CA 96150
Type: Post Secondary
Sierra Academy Of Style 1851 South Roop Street
Carson City, NV 89701-6324
Type: Post Secondary
Western Nevada College 2201 West College Parkway
Carson City, NV 89703-7399
Type: Post Secondary
Sierra Nevada University 999 Tahoe Blvd.
Incline Village, NV 89451
Type: Post Secondary
Paul Mitchell The School-Reno-North Tahoe 12047 Donner Pass Road Suite A 1
Truckee, CA 96161-0000
Type: Post Secondary
Carrington College-Reno 5580 Kietzke Ln.
Reno, NV 89511
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.

  1. U.S. Postal Service [Last Updated: 1/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 1/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 1/1/2026], https://nces.ed.gov