Housing data for Knightsen, CA
Knightsen, CA has an estimated 2,264 residents and 587 homes (US Census Bureau, 2020–2024 American Community Survey).
It is an unincorporated community in Contra Costa County.
2.1% of households rent.
Its population grew measurably since 2015–2019 (+92.5%).
Figures last updated on .
- Residents
- 2,264 (±944)
- Housing units
- 587 (±154)
- Households that rent
- 2.1%
- Residents since 2015–2019
- +92.5%
What stands out in Knightsen
Households that rent: 2.1% (±5.0 points) in Knightsen, lower than in Contra Costa County (32.0%).
Homes in buildings of 5 or more units: 0.0% (±12.1 points) in Knightsen, lower than in Contra Costa County (16.5%).
Median real estate taxes: $3,594 (±$3,364) in Knightsen, lower than in Contra Costa County ($7,156).
Average commute: 43.8 minutes (±8.3) in Knightsen, higher than in Contra Costa County (35.3 minutes).
Housing in Knightsen at a glance
- Rent burden: 0.0% of renters pay 30% or more of income (Small sample: wide margin of error)
- Renters and owners: 2.1% of households rent (Small sample: wide margin of error)
- Income and affordability: $177,232 median household income
- Home values: $953,000 median home value
- Homeowner costs: $3,450 median monthly cost with a mortgage (Small sample: wide margin of error)
- Property taxes: $3,594 median real estate taxes a year (Small sample: wide margin of error)
- Types of homes: 0.0% of homes are in buildings of 5 or more units
- Bedrooms: 74.5% of homes have 3 or more bedrooms (Small sample: wide margin of error)
- Age of homes: 55.1% of homes were built before 1980
- Vacancy rate: 0.0% rental vacancy rate (Small sample: wide margin of error)
- Heating fuel: 37.3% heat with electricity
- Commute and cars: 43.8 minutes average trip to work
- Growth: +92.5% residents since 2015–2019
- How long people stay: 37.9% moved in since 2020 (Small sample: wide margin of error)
- Crowding and facilities: 10.6% of homes have more than 1 person per room (Small sample: wide margin of error)
Knightsen against Contra Costa County, its state and the nation
| Knightsen | Contra Costa County | California | United States | |
|---|---|---|---|---|
| Residents | 2,264 (±944) | 1,165,012 (exact) | 39,287,377 (exact) | 334,922,499 |
| Housing units | 587 (±154) | 429,260 (±163) | 14,644,735 (±1,665) | 143,775,355 |
| Households that rent | 2.1% (±5.0 points) | 32.0% (±0.5 points) | 44.1% (±0.2 points) | 34.8% |
| Median gross rent | — | $2,375 (±$22) | $2,036 (±$5) | $1,413 |
| Median household income | $177,232 (±$62,477) | $127,229 (±$1,713) | $99,122 (±$310) | $80,734 |
| Median home value | $953,000 (±$210,646) | $866,800 (±$6,426) | $734,700 (±$1,307) | $332,700 |
| Median real estate taxes (a year) | $3,594 (±$3,364) | $7,156 (±$82) | $5,124 (±$17) | $3,119 |
| Built before 1980 | 55.1% (±24.8 points) | 53.1% (±0.9 points) | 56.0% (±0.2 points) | 49.7% |
| Average commute | 43.8 minutes (±8.3) | 35.3 minutes (±0.4) | 28.7 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 93.3% (±10.3 points) | 95.6% (±0.3 points) | 93.5% (±0.1 points) | 91.0% |
| Median age of residents | 39.6 years (±10.6) | 40.5 years (±0.1) | 37.9 years (±0.1) | 38.9 years |
Knightsen covers 8.4 square miles of land, about 271 residents per square mile (Census Bureau Gazetteer).
How Knightsen has changed since 2015–2019
| 2015–2019 | 2020–2024 | Amount of change | Verdict | |
|---|---|---|---|---|
| Residents | 1,176 (±310) | 2,264 (±944) | +92.5% | Measurable increase |
| Housing units | 511 (±114) | 587 (±154) | +14.9% | Not a measurable change |
| Median home value | $705,400 (±$110,971) | $953,000 (±$210,646) | +35.1% | No measurable change after inflation |
| Median household income | $104,375 (±$30,682) | $177,232 (±$62,477) | +69.8% | No measurable change after inflation |
| Median owner cost with a mortgage | $2,580 (±$816) | $3,450 (±$2,421) | +33.7% | No measurable change after inflation |
| Median real estate taxes | $4,479 (±$1,254) | $3,594 (±$3,364) | −19.8% | No measurable change after inflation |
| Households that rent | 17.8% (±11.0 points) | 2.1% (±5.0 points) | −15.7 percentage points | Measurable decrease |
| Rental vacancy rate | 15.3% (±25.4 points) | 0.0% (±97.9 points) | −15.3 percentage points | Not a measurable change |
The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.
Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.
The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.
Crime reported to police in Contra Costa County
Knightsen has no police department of its own in the FBI’s figures, so this is the figure for Contra Costa County as a whole.
In 2025, the police departments that report for Contra Costa County recorded 353 violent and 1,693 property crimes per 100,000 residents.
A county-wide figure describes the whole county, not this place; crime varies from one community to the next.
ZIP codes in Knightsen
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 94548 | 100% | 832 | — | $959,900 | $189,653 |
A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.
Places near Knightsen
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| Oakley | 3.4 mi | $1,953 | $660,200 | 21.2% |
| Brentwood | 4.3 mi | $2,758 | $836,600 | 17.8% |
| Bethel Island | 4.7 mi | $1,606 | $682,700 | 35.8% |
| Discovery Bay | 4.7 mi | $3,029 | $832,000 | 9.9% |
| Byron | 6.0 mi | $2,643 | $750,000 | 40.1% |
| Antioch | 8.1 mi | $2,278 | $629,700 | 36.4% |
| Isleton | 14 mi | $1,168 | $326,200 | 24.7% |
| Pittsburg | 14 mi | $2,264 | $597,900 | 37.7% |
HUD Fair Market Rent for Knightsen, fiscal year 2027
| Studio | 1 bedroom | 2 bedrooms | 3 bedrooms | 4 bedrooms |
|---|---|---|---|---|
| $2,088 | $2,290 | $2,805 | $3,592 | $4,250 |
HUD income limits for Knightsen, fiscal year 2026
| Household size | Extremely low (30%) | Very low (50%) | Low (80%) |
|---|---|---|---|
| 1 person | $35,650 | $59,400 | $95,050 |
| 2 people | $40,750 | $67,900 | $108,600 |
| 3 people | $45,850 | $76,400 | $122,200 |
| 4 people | $50,900 | $84,850 | $135,750 |
| 5 people | $55,000 | $91,650 | $146,650 |
| 6 people | $59,050 | $98,450 | $157,500 |
| 7 people | $63,150 | $105,250 | $168,350 |
| 8 people | $67,200 | $112,050 | $179,200 |
These are the limits HUD sets for its housing programs in the Oakland-Fremont, CA HUD Metro FMR Area, where HUD’s median family income for fiscal year 2026 is $162,800.
A program can use its own limits; tax-credit and local programs often do.
Knightsen is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.
Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.
Margins of error are at the 90% confidence level.
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Questions about Knightsen
What is the median household income in Knightsen?
The median household income in Knightsen is $177,232 (±$62,477) a year (2020–2024 American Community Survey).
What is the average home value in Knightsen, CA?
The Census Bureau publishes the median: $953,000 (±$210,646) for owner-occupied homes in Knightsen (2020–2024 American Community Survey).
How many homes are in Knightsen?
Knightsen, CA has an estimated 587 (±154) housing units, occupied and vacant (2020–2024 American Community Survey).
How old are most homes in Knightsen?
55.1% of homes in Knightsen, CA were built before 1980 (2020–2024 American Community Survey).
What is the most common way to heat a home in Knightsen?
Electricity is the most common heating fuel in Knightsen, used by 37.3% of occupied homes (2020–2024 American Community Survey).
How long is the average commute in Knightsen?
Workers who live in Knightsen, CA take an average of 43.8 minutes each way (2020–2024 American Community Survey).
Is Knightsen growing?
In Knightsen, the number of residents went from 1,176 in 2015–2019 to 2,264 in 2020–2024 (+92.5%), a measurable increase.
What ZIP codes are in Knightsen?
The ZIP code that covers Knightsen is 94548.
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — Knightsen CDP, California
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Knightsen CDP, California
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — Knightsen CDP, California
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — Knightsen CDP, California
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — Knightsen CDP, California
- Total Population (B01003), 2015–2019 ACS 5-year estimates — Knightsen CDP, California
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — Knightsen CDP, California
- HUD Fair Market Rents, fiscal year 2027: Oakland-Fremont, CA HUD Metro FMR Area
- HUD Income Limits, fiscal year 2026: Oakland-Fremont, CA HUD Metro FMR Area
- US Census Bureau, American Community Survey 2020–2024 5-year estimates for ZIP Code Tabulation Areas
- Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items, US Bureau of Labor Statistics: annual averages 2019 and 2024
- US Census Bureau, 2024 Gazetteer Files
To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Knightsen CDP, California (place:38772, in state:06).
Each estimate (E or PE) has a margin of error beside it (M or PM).
The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.
The API needs a free key.
DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.
Figures last updated on .