Home > Households, Buildings & Industry > Energy Efficiency Page > Energy Intensities >Table 7a

U.S. Residential Housing Primary Energy
Intensity

Page Last Revised: July 2009

Table 7a. U.S. Residential Energy Intensity Using Primary Energy1 by Census Region and Type of Housing Unit, 1978-2005
(Million Btu per Household)

Type of Housing Unit and Census Region

 

1978

1979

1980

1981

1982

1984

1987

1990

1993

1997

2001
2005

U.S. Total

204

189

176

172

160

164

163

164

172

172

164
170

Mobile Home

169

158

147

142

134

136

140

142

159

161

160
148

Single-Family Detached

230

211

197

195

180

186

188

190

201

199

192
195

Single-Family Attached

204

193

169

160

161

168

161

152

163

151

164
150

Apartments in Buildings with 2 to 4 Units

173

166

148

137

133

132

133

136

142

137

127
134

Apartments in Buildings with 5 or More Units

120

118

114

105

102

109

102

91

92

90

83
101

Total Northeast

212

192

185

178

163

171

173

170

171

171

158
176

Mobile Home

154

138

157

166

136

135

131

148

153

141

148
115

Single-Family Detached

253

228

210

216

189

204

214

207

217

205

202
211

Single-Family Attached

198

196

187

168

178

167

165

157

150

165

157
162

Apartments in Buildings with 2 to 4 Units

191

185

172

149

146

145

148

146

157

139

139
159

Apartments in Buildings with 5 or More Units

149

132

138

121

112

115

108

95

92

93

83
108

Total Midwest

239

226

199

200

177

181

178

180

199

197

182
184

Mobile Home

196

177

168

168

146

164

152

155

173

176

168
156

Single-Family Detached

256

241

219

224

198

204

201

205

225

222

206
204

Single-Family Attached

237

248

145

189

186

173

196

172

193

176

189
165

Apartments in Buildings with 2 to 4 Units

187

185

165

156

155

155

146

157

183

167

152
155

Apartments in Buildings with 5 or More Units

103

123

114

107

102

114

104

90

107

93

76
99

Total South

182

171

176

162

162

160

165

167

179

178

179
178

Mobile Home

153

149

149

131

126

121

141

136

163

166

170
160

Single-Family Detached

203

185

194

178

177

176

183

190

200

201

199
200

Single-Family Attached

198

178

176

146

165

180

156

141

192

154

171
157

Apartments in Buildings with 2 to 4 Units

139

125

124

120

118

112

125

118

113

127

119
125

Apartments in Buildings with 5 or More Units

107

118

118

106

105

109

114

101

98

103

108
113

Total West

180

164

137

146

132

141

132

135

132

134

126
138

Mobile Home

210

188

129

152

123

139

129

131

145

149

141
129

Single-Family Detached

212

193

159

168

155

168

157

157

158

161

154
163

Single-Family Attached

183

176

123

145

125

111

128

160

120

108

126
115

Apartments in Buildings with 2 to 4 Units

143

132

103

101

97

100

107

99

100

87

82
92

Apartments in Buildings with 5 or More Units

105

96

77

80

82

96

83

76

71

72

66
73

1. The amount of site consumption, plus losses that occur in the generation, transmission, and distribution of energy.
Sources: Energy Information Administration, Residential Energy Consumption Surveys, 1978, 1979, 1980, 1981, 1982, 1984, 1987, 1990, 1993, 1997, 2001, and 2005.