Data release date: March 2023

Number of 

housing units 

(million)

Total mobile 

homesa Totalb Heated Cooled

All homes 6.83 8.30 7.79 6.20

Census region and division

Northeast 0.50 0.54 0.53 0.28

New England 0.14 0.16 0.16 0.07

Middle Atlantic 0.36 0.38 0.36 0.22

Midwest 0.97 1.14 1.12 0.86

East North Central 0.63 0.70 0.69 0.52

West North Central 0.35 0.44 0.43 0.34

South 3.89 4.89 4.55 3.93

South Atlantic 2.00 2.42 2.25 1.92

East South Central 0.77 1.04 0.97 0.82

West South Central 1.12 1.43 1.32 1.19

West 1.47 1.73 1.60 1.13

Mountain 0.67 0.77 0.72 0.55

Mountain North 0.24 0.28 0.28 0.17

Mountain South 0.43 0.49 0.44 0.38

Pacific 0.80 0.96 0.87 0.58

Census urban/rural classificationc

Urban 3.31 3.69 3.40 2.81

Urbanized area 2.53 2.81 2.56 2.12

Urban cluster 0.77 0.88 0.85 0.69

Rural 3.52 4.60 4.38 3.39

Climate regiond

Very cold/Cold 1.52 1.75 1.74 1.11

Mixed-humid 2.35 2.99 2.85 2.30

Mixed-dry/Hot-dry 0.83 0.94 0.85 0.75

Hot-humid 1.80 2.18 1.97 1.84

Marine 0.34 0.42 0.38 0.20

Table HC10.8 Total square footage of mobile homes, 2020

Total square footage (billion square feet)
Number of 

housing units 

(million)

Total mobile 

homesa Totalb Heated Cooled

All homes 6.83 8.30 7.79 6.20

Table HC10.8 Total square footage of mobile homes, 2020

Total square footage (billion square feet)

Year of construction

Before 1950 0.09 0.09 0.09 0.05

1950 to 1959 0.16 0.15 0.14 0.09

1960 to 1969 0.37 0.35 0.33 0.21

1970 to 1979 1.34 1.39 1.31 0.92

1980 to 1989 1.33 1.51 1.41 1.07

1990 to 1999 1.92 2.53 2.36 1.89

2000 to 2009 0.98 1.41 1.33 1.21

2010 to 2015 0.32 0.46 0.45 0.41

2016 to 2020 0.31 0.40 0.37 0.34

Fuels used for any use (more than 

one may apply)

Electricity 6.83 8.30 7.79 6.20

Natural gas 2.30 2.61 2.45 1.90

Propanee 1.31 1.55 1.45 1.05

Wood 0.63 0.92 0.92 0.64

Fuel oil or kerosene 0.28 0.32 0.31 0.15

Distributed solar generation

Yes 0.10 0.13 0.10 0.10

No 6.73 8.17 7.69 6.10

Not asked (apartments) N N N N

Main space heating fuel

Natural gas 1.60 1.85 1.85 1.39

Electricity 3.87 4.88 4.61 3.83

Fuel oil or kerosene 0.23 0.26 0.26 0.11

Propane 0.69 0.81 0.81 0.59

Wood 0.22 0.26 0.26 0.12

Some other fuelf Q Q Q Q

Does not use heating equipment 0.22 0.24 0.00 0.16

Air-conditioning equipment

Uses air-conditioning equipment 6.07 7.36 6.95 6.20

Does not use air-conditioning 

equipment 0.76 0.94 0.84 0.00
Number of 

housing units 

(million)

Total mobile 

homesa Totalb Heated Cooled

All homes 6.83 8.30 7.79 6.20

Table HC10.8 Total square footage of mobile homes, 2020

Total square footage (billion square feet)

Fuel used by main water heater

Natural gas 1.28 1.45 1.37 1.05

Electricity 5.17 6.39 6.02 4.86

Propane 0.36 0.43 0.39 0.27

Fuel oil or kerosene Q Q Q Q

Some other fuelf Q Q Q Q

Indoor light bulbs used at least 4 

hours a day

0 to 2 2.99 3.43 3.20 2.50

3 to 5 1.91 2.33 2.22 1.77

6 to 9 1.21 1.56 1.41 1.17

10 to 19 0.58 0.80 0.79 0.63

20 or more 0.14 0.17 0.17 0.13

Total number of rooms (excluding 

bathrooms)

1 or 2 0.11 0.06 0.04 0.05

3 0.21 0.16 0.13 0.11

4 1.17 0.99 0.87 0.69

5 1.65 1.69 1.58 1.22

6 1.94 2.44 2.34 1.86

7 0.87 1.34 1.26 1.00

8 0.58 1.04 1.01 0.86

9 or more 0.30 0.57 0.56 0.41

Number of bedrooms

0 Q Q Q Q

1 0.40 0.27 0.22 0.17

2 2.36 2.36 2.19 1.69

3 3.49 4.62 4.41 3.49

4 0.51 0.92 0.87 0.78

5 or more 0.07 0.12 0.09 0.07

Adequacy of insulation

Well insulated 1.39 1.85 1.76 1.45

Adequately insulated 3.28 4.10 3.92 3.09

Poorly insulated 1.87 2.07 1.89 1.50

No insulation 0.29 0.27 0.21 0.16
Number of 

housing units 

(million)

Total mobile 

homesa Totalb Heated Cooled

All homes 6.83 8.30 7.79 6.20

Table HC10.8 Total square footage of mobile homes, 2020

Total square footage (billion square feet)

Type of glass in windows

Single-pane glass 3.46 3.81 3.52 2.90

Double-pane glass 3.29 4.37 4.18 3.22

Triple-pane glass Q Q Q Q

Number of household members

1 member 2.15 2.41 2.28 1.71

2 members 2.31 2.88 2.77 2.17

3 members 1.00 1.24 1.20 0.95

4 members 0.72 0.91 0.80 0.69

5 members 0.30 0.42 0.38 0.36

6 or more members 0.35 0.43 0.37 0.32

2020 annual household income

Less than $5,000 0.56 0.59 0.55 0.41

$5,000 to $9,999 0.62 0.68 0.61 0.44

$10,000 to $19,999 1.32 1.50 1.42 1.09

$20,000 to $39,999 2.25 2.64 2.43 1.98

$40,000 to $59,999 1.19 1.55 1.49 1.20

$60,000 to $99,999 0.61 0.88 0.82 0.68

$100,000 to $149,999 0.23 0.38 0.38 0.33

$150,000 or more 0.06 0.09 0.08 0.07

Ownership of housing unitg

Owned 5.38 6.73 6.37 5.08

Rented 1.45 1.57 1.42 1.12
Number of 

housing units 

(million)

Total mobile 

homesa Totalb Heated Cooled

All homes 6.83 8.30 7.79 6.20

Table HC10.8 Total square footage of mobile homes, 2020

Total square footage (billion square feet)

Data source: U.S. Energy Information Administration, Office of Energy Demand and Integrated Statistics, Form EIA-457A of 

the 2020 Residential Energy Consumption Survey

Notes: Because of rounding, data may not sum to totals. See RECS Terminology for the definitions of terms used in these 

tables. 

a Total mobile homesincludes all primary occupied mobile homes in the 50 states and the District of Columbia. Vacant 

housing units, seasonal units, second homes, military houses, and group quarters are excluded.

b Total square footage includes all basements, finished or conditioned (heated or cooled) areas of attics, and conditioned 

garage space that is attached to the home. Unconditioned and unfinished areas in attics and attached garages are 

excluded. The square footage of the home is based on respondent reports. Previous RECS cycles calculated square 

footage based on interviewer measurements. For households that did not report an exact square footage estimate, the 

square footage of the home was imputed based on a reported square footage range and/or characteristics of the home. 

See 2020 RECS Square Footage Methodology for full details about data collection and processing.

c Housing units are classified using criteria created by the U.S. Census Bureau based on 2010 Census data. Urbanized areas 

are densely settled groupings of blocks or tracts with 50,000 or more people, while urban clusters have at least 2,500 but 

less than 50,000 people. All other areas are rural.

d The Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable 

Energy (EERE), created these climate regions. We combined climate regions for this publication. The Subarctic region is 

included with data for Very-cold/Cold .

e Households that use propane only for outdoor grilling are excluded from the RECS estimate of households using 

propane. 

f

Some other fuel includes coal and district steam.

g Rented includes households that occupy their primary housing unit without paying rent. 

Q = Data withheld because either the relative standard error (RSE) was greater than 50% or fewer than 10 households 

were in the reporting sample.

N = No households in reporting sample. 
Data release date: March 2023

Percentage of 

housing units

Total mobile 

homesa Totalb Heated Cooled

All homes 100.00 100.00 100.00 100.00

Census region and division

Northeast 7.28 6.48 6.75 4.59

New England 2.05 1.94 2.07 1.11

Middle Atlantic 5.23 4.54 4.68 3.47

Midwest 14.25 13.75 14.39 13.83

East North Central 9.15 8.39 8.81 8.32

West North Central 5.10 5.36 5.58 5.51

South 56.93 58.95 58.35 63.41

South Atlantic 29.27 29.19 28.91 30.98

East South Central 11.28 12.48 12.48 13.16

West South Central 16.38 17.28 16.96 19.26

West 21.54 20.81 20.51 18.17

Mountain 9.79 9.24 9.29 8.80

Mountain North 3.54 3.39 3.61 2.68

Mountain South 6.25 5.85 5.68 6.12

Pacific 11.75 11.57 11.23 9.37

Census urban/rural classificationc

Urban 48.42 44.53 43.71 45.32

Urbanized area 37.09 33.93 32.86 34.16

Urban cluster 11.32 10.60 10.85 11.16

Rural 51.58 55.47 56.29 54.68

Climate regiond

Very cold/Cold 22.19 21.15 22.33 17.97

Mixed-humid 34.40 36.04 36.58 37.16

Mixed-dry/Hot-dry 12.19 11.38 10.88 12.10

Hot-humid 26.29 26.32 25.31 29.61

Marine 4.92 5.11 4.91 3.16

Table HC10.8 Total square footage of mobile homes, 2020

Percentage of total square footage
Percentage of 

housing units

Total mobile 

homesa Totalb Heated Cooled

All homes 100.00 100.00 100.00 100.00

Table HC10.8 Total square footage of mobile homes, 2020

Percentage of total square footage

Year of construction

Before 1950 1.38 1.14 1.14 0.77

1950 to 1959 2.41 1.81 1.80 1.51

1960 to 1969 5.44 4.18 4.20 3.39

1970 to 1979 19.58 16.80 16.85 14.79

1980 to 1989 19.49 18.26 18.10 17.30

1990 to 1999 28.12 30.45 30.25 30.55

2000 to 2009 14.37 16.97 17.09 19.52

2010 to 2015 4.73 5.52 5.77 6.62

2016 to 2020 4.49 4.86 4.79 5.55

Fuels used for any use (more than 

one may apply)

Electricity 100.00 100.00 100.00 100.00

Natural gas 33.65 31.45 31.49 30.60

Propanee 19.19 18.74 18.58 16.99

Wood 9.18 11.13 11.77 10.30

Fuel oil or kerosene 4.16 3.89 3.96 2.44

Distributed solar generation

Yes 1.49 1.57 1.23 1.54

No 98.51 98.43 98.78 98.46

Not asked (apartments) N N N N

Main space heating fuel

Natural gas 23.39 22.25 23.70 22.43

Electricity 56.57 58.83 59.23 61.82

Fuel oil or kerosene 3.39 3.08 3.28 1.76

Propane 10.10 9.71 10.34 9.46

Wood 3.29 3.15 3.36 1.98

Some other fuelf Q Q Q Q

Does not use heating equipment 3.20 2.89 0.00 2.51

Air-conditioning equipment

Uses air-conditioning equipment 88.82 88.68 89.19 100.00

Does not use air-conditioning 

equipment 11.18 11.32 10.82 0.00
Percentage of 

housing units

Total mobile 

homesa Totalb Heated Cooled

All homes 100.00 100.00 100.00 100.00

Table HC10.8 Total square footage of mobile homes, 2020

Percentage of total square footage

Fuel used by main water heater

Natural gas 18.66 17.47 17.62 16.93

Electricity 75.66 77.02 77.28 78.36

Propane 5.33 5.20 5.07 4.35

Fuel oil or kerosene Q Q Q Q

Some other fuelf Q Q Q Q

Indoor light bulbs used at least 4 

hours a day

0 to 2 43.82 41.38 41.03 40.26

3 to 5 27.94 28.06 28.49 28.53

6 to 9 17.71 18.75 18.15 18.93

10 to 19 8.55 9.69 10.19 10.15

20 or more 1.98 2.11 2.14 2.13

Total number of rooms (excluding 

bathrooms)

1 or 2 1.68 0.71 0.57 0.73

3 3.01 1.92 1.68 1.81

4 17.15 11.95 11.19 11.17

5 24.21 20.43 20.32 19.60

6 28.35 29.46 30.06 29.95

7 12.76 16.13 16.12 16.16

8 8.42 12.48 12.91 13.93

9 or more 4.43 6.92 7.15 6.66

Number of bedrooms

0 Q Q Q Q

1 5.82 3.29 2.78 2.74

2 34.52 28.49 28.15 27.27

3 51.04 55.66 56.68 56.31

4 7.51 11.10 11.17 12.52

5 or more 1.02 1.45 1.20 1.14

Adequacy of insulation

Well insulated 20.37 22.31 22.55 23.34

Adequately insulated 48.04 49.42 50.38 49.85

Poorly insulated 27.38 25.01 24.32 24.21

No insulation 4.22 3.27 2.76 2.60
Percentage of 

housing units

Total mobile 

homesa Totalb Heated Cooled

All homes 100.00 100.00 100.00 100.00

Table HC10.8 Total square footage of mobile homes, 2020

Percentage of total square footage

Type of glass in windows

Single-pane glass 50.64 45.89 45.23 46.72

Double-pane glass 48.18 52.70 53.62 51.93

Triple-pane glass Q Q Q Q

Number of household members

1 member 31.40 29.05 29.29 27.58

2 members 33.78 34.77 35.51 35.02

3 members 14.68 14.98 15.44 15.40

4 members 10.58 10.96 10.23 11.07

5 members 4.45 5.06 4.83 5.74

6 or more members 5.11 5.18 4.69 5.20

2020 annual household income

Less than $5,000 8.12 7.07 7.11 6.66

$5,000 to $9,999 9.01 8.15 7.85 7.14

$10,000 to $19,999 19.37 18.03 18.25 17.56

$20,000 to $39,999 32.98 31.77 31.18 31.95

$40,000 to $59,999 17.37 18.73 19.09 19.33

$60,000 to $99,999 8.91 10.61 10.56 10.89

$100,000 to $149,999 3.39 4.60 4.90 5.28

$150,000 or more 0.85 1.05 1.07 1.20

Ownership of housing unitg

Owned 78.76 81.11 81.80 81.90

Rented 21.24 18.89 18.21 18.10
Percentage of 

housing units

Total mobile 

homesa Totalb Heated Cooled

All homes 100.00 100.00 100.00 100.00

Table HC10.8 Total square footage of mobile homes, 2020

Percentage of total square footage

Data source: U.S. Energy Information Administration, Office of Energy Demand and Integrated Statistics, Form EIA-457A of 

the 2020 Residential Energy Consumption Survey

Notes: Because of rounding, data may not sum to totals. See RECS Terminology for the definitions of terms used in these 

tables. 

a Total mobile homesincludes all primary occupied mobile homes in the 50 states and the District of Columbia. Vacant 

housing units, seasonal units, second homes, military houses, and group quarters are excluded.

b Total square footage includes all basements, finished or conditioned (heated or cooled) areas of attics, and conditioned 

garage space that is attached to the home. Unconditioned and unfinished areas in attics and attached garages are 

excluded. The square footage of the home is based on respondent reports. Previous RECS cycles calculated square 

footage based on interviewer measurements. For households that did not report an exact square footage estimate, the 

square footage of the home was imputed based on a reported square footage range and/or characteristics of the home. 

See 2020 RECS Square Footage Methodology for full details about data collection and processing.

c Housing units are classified using criteria created by the U.S. Census Bureau based on 2010 Census data. Urbanized areas 

are densely settled groupings of blocks or tracts with 50,000 or more people, while urban clusters have at least 2,500 but 

less than 50,000 people. All other areas are rural.

d The Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable 

Energy (EERE), created these climate regions. We combined climate regions for this publication. The Subarctic region is 

included with data for Very-cold/Cold .

e Households that use propane only for outdoor grilling are excluded from the RECS estimate of households using 

propane. 

f

Some other fuel includes coal and district steam.

g Rented includes households that occupy their primary housing unit without paying rent. 

Q = Data withheld because either the relative standard error (RSE) was greater than 50% or fewer than 10 households 

were in the reporting sample.

N = No households in reporting sample. 
Data release date: March 2023

RSEs for 

number of 

housing units 

Total mobile 

homesa Totalb Heated Cooled

All homes 0.00 1.27 1.61 2.47

Census region and division

Northeast 0.00 4.07 4.76 9.41

New England 0.00 5.46 5.46 17.17

Middle Atlantic 0.00 5.12 6.22 11.93

Midwest 0.00 3.30 3.67 6.72

East North Central 0.00 3.95 4.41 8.81

West North Central 0.00 5.05 5.70 9.39

South 0.00 1.77 2.22 3.07

South Atlantic 0.00 2.32 2.67 4.67

East South Central 0.00 3.49 3.81 4.87

West South Central 0.00 3.74 4.48 5.64

West 0.00 2.70 3.72 6.34

Mountain 0.00 3.28 3.92 6.38

Mountain North 0.00 4.22 4.22 11.12

Mountain South 0.00 4.64 6.01 7.58

Pacific 0.00 4.33 6.10 10.78

Census urban/rural classificationc

Urban 3.66 4.38 4.59 5.33

Urbanized area 5.05 6.00 6.44 6.53

Urban cluster 9.73 9.46 9.53 10.45

Rural 3.44 3.57 3.69 4.40

Climate regiond

Very cold/Cold 3.24 3.65 3.69 6.02

Mixed-humid 4.24 4.81 4.73 5.61

Mixed-dry/Hot-dry 6.05 8.08 8.95 10.22

Hot-humid 5.01 6.17 7.07 7.06

Marine 11.57 10.45 11.20 16.71

Relative standard errors (RSEs) for Table HC10.8 Total square footage of mobile homes, 

2020

RSEs for total square footage 
RSEs for 

number of 

housing units 

Total mobile 

homesa Totalb Heated Cooled

All homes 0.00 1.27 1.61 2.47

Relative standard errors (RSEs) for Table HC10.8 Total square footage of mobile homes, 

2020

RSEs for total square footage 

Year of construction

Before 1950 36.55 35.84 36.68 42.79

1950 to 1959 24.48 26.12 26.88 33.85

1960 to 1969 15.91 16.24 17.09 20.06

1970 to 1979 6.65 7.54 7.67 10.44

1980 to 1989 6.79 7.52 7.82 9.59

1990 to 1999 5.51 6.14 5.99 7.16

2000 to 2009 7.71 8.32 8.40 9.04

2010 to 2015 12.80 14.47 14.58 15.19

2016 to 2020 16.12 16.52 17.64 17.97

Fuels used for any use (more than 

one may apply)

Electricity 0.00 1.27 1.61 2.47

Natural gas 5.17 6.01 6.55 6.73

Propanee 7.11 7.99 7.62 9.05

Wood 9.67 10.67 10.83 16.21

Fuel oil or kerosene 13.35 13.91 13.69 22.44

Distributed solar generation

Yes 26.30 26.11 29.36 32.11

No 0.40 1.29 1.63 2.58

Not asked (apartments) 0.00 0.00 0.00 0.00

Main space heating fuel

Natural gas 6.37 7.14 7.14 7.58

Electricity 2.69 3.31 3.68 4.36

Fuel oil or kerosene 16.20 16.75 16.75 26.36

Propane 10.84 11.44 11.44 13.35

Wood 17.05 18.53 18.53 32.93

Some other fuelf 100.58 100.58 100.58 100.58

Does not use heating equipment 21.74 25.75 0.00 26.12

Air-conditioning equipment

Uses air-conditioning equipment 1.18 1.82 2.22 2.47

Does not use air-conditioning 

equipment 9.41 10.55 11.51 0.00
RSEs for 

number of 

housing units 

Total mobile 

homesa Totalb Heated Cooled

All homes 0.00 1.27 1.61 2.47

Relative standard errors (RSEs) for Table HC10.8 Total square footage of mobile homes, 

2020

RSEs for total square footage 

Fuel used by main water heater

Natural gas 7.06 8.43 9.21 10.08

Electricity 1.86 2.32 2.47 3.60

Propane 16.18 16.67 17.00 19.57

Fuel oil or kerosene 77.89 83.54 61.18 95.38

Some other fuelf 100.93 100.93 0.00 100.93

Indoor light bulbs used at least 4 

hours a day

0 to 2 3.84 4.28 4.83 5.40

3 to 5 5.63 6.51 6.68 7.88

6 to 9 7.64 8.28 8.92 8.68

10 to 19 10.55 11.33 11.28 14.20

20 or more 24.64 25.86 26.29 30.73

Total number of rooms (excluding 

bathrooms)

1 or 2 30.16 32.38 37.36 30.50

3 21.23 20.74 22.47 26.08

4 6.69 7.23 7.90 9.23

5 5.89 6.15 6.56 7.00

6 5.87 5.71 5.77 7.35

7 8.07 8.18 7.99 11.04

8 11.74 11.71 11.92 12.76

9 or more 18.49 18.48 18.47 20.59

Number of bedrooms

0 100.51 16.40 16.40 16.40

1 13.41 15.15 15.44 17.24

2 3.92 4.69 5.31 5.87

3 3.23 3.58 3.63 4.60

4 13.20 12.66 13.49 14.27

5 or more 33.16 32.56 37.49 44.17

Adequacy of insulation

Well insulated 6.90 6.84 6.84 8.90

Adequately insulated 3.56 4.14 4.37 5.13

Poorly insulated 5.88 6.61 6.65 7.85

No insulation 18.46 18.35 20.07 24.13
RSEs for 

number of 

housing units 

Total mobile 

homesa Totalb Heated Cooled

All homes 0.00 1.27 1.61 2.47

Relative standard errors (RSEs) for Table HC10.8 Total square footage of mobile homes, 

2020

RSEs for total square footage 

Type of glass in windows

Single-pane glass 3.64 4.53 4.55 5.27

Double-pane glass 3.84 4.33 4.40 5.18

Triple-pane glass 33.40 36.46 38.42 39.04

Number of household members

1 member 6.37 7.08 7.74 8.01

2 members 5.50 5.66 5.77 7.44

3 members 8.12 8.77 8.85 9.66

4 members 11.10 11.84 12.54 12.65

5 members 15.65 15.98 16.69 17.65

6 or more members 15.85 17.25 19.27 18.13

2020 annual household income

Less than $5,000 12.46 13.01 13.34 15.19

$5,000 to $9,999 12.50 12.91 13.92 17.91

$10,000 to $19,999 7.25 7.50 7.82 8.54

$20,000 to $39,999 5.51 5.58 5.52 6.13

$40,000 to $59,999 8.45 8.72 9.31 10.34

$60,000 to $99,999 11.09 11.69 11.41 12.96

$100,000 to $149,999 19.07 20.42 20.42 22.78

$150,000 or more 38.38 37.43 38.60 37.10

Ownership of housing unitg

Owned 2.05 2.24 2.54 3.29

Rented 7.62 7.66 7.82 7.89
RSEs for 

number of 

housing units 

Total mobile 

homesa Totalb Heated Cooled

All homes 0.00 1.27 1.61 2.47

Relative standard errors (RSEs) for Table HC10.8 Total square footage of mobile homes, 

2020

RSEs for total square footage 

Data source: U.S. Energy Information Administration, Office of Energy Demand and Integrated Statistics, Form EIA-457A of 

the 2020 Residential Energy Consumption Survey

Notes: See RECS Terminology for the definitions of terms used in these tables. 

a Total mobile homesincludes all primary occupied mobile homes in the 50 states and the District of Columbia. Vacant 

housing units, seasonal units, second homes, military houses, and group quarters are excluded.

b Total square footage includes all basements, finished or conditioned (heated or cooled) areas of attics, and conditioned 

garage space that is attached to the home. Unconditioned and unfinished areas in attics and attached garages are 

excluded. The square footage of the home is based on respondent reports. Previous RECS cycles calculated square 

footage based on interviewer measurements. For households that did not report an exact square footage estimate, the 

square footage of the home was imputed based on a reported square footage range and/or characteristics of the home. 

See 2020 RECS Square Footage Methodology for full details about data collection and processing.

c Housing units are classified using criteria created by the U.S. Census Bureau based on 2010 Census data. Urbanized areas 

are densely settled groupings of blocks or tracts with 50,000 or more people, while urban clusters have at least 2,500 but 

less than 50,000 people. All other areas are rural.

d The Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable 

Energy (EERE), created these climate regions. We combined climate regions for this publication. The Subarctic region is 

included with data for Very-cold/Cold .

e Households that use propane only for outdoor grilling are excluded from the RECS estimate of households using 

propane. 

f

Some other fuel includes coal and district steam.

g Rented includes households that occupy their primary housing unit without paying rent.