BUFFALO GROVE                  
Data Source: U.S. Census Bureau    
     
POPULATION BY AGE - 5 year increments
   
Year
1980 1990 2000 Difference Difference Percent Percent    
1990-1980 2000-1990 Change Change    
  1980-1990 1990-2000    
Total Population 22,230 36,427 42,909 14,197 6,482 63.86% 17.79%  
   Male 11,034 17,867 20,750 6,833 2,883 61.93% 16.14%    
   Female 11,196 18,560 22,159 7,364 3,599 65.77% 19.39%    
Median Age   37.4    
   Male   36.4      
   Female   38.2      
Under 5 Years 2,178 3,489 2,827 1,311 -662 60.19% -18.97%  
   Male 1,118 1,852 1,420 734 -432 65.65% -23.33%    
   Female 1,060 1,637 1,407 577 -230 54.43% -14.05%    
5 to 9 Years 2,218 3,103 3,509 885 406 39.90% 13.08%  
   Male 1,101 1,638 1,769 537 131 48.77% 8%    
   Female 1,117 1,465 1,740 348 275 31.15% 18.77%    
10 to 14 Years 2,333 2,546 3,845 213 1,299 9.13% 51.02%  
   Male 1,184 1,302 2,000 118 698 9.97% 53.61%    
   Female 1,149 1,244 1,845 95 601 8.27% 48.31%    
15 to 19 Years 1,794 1,995 2,969 201 974 11.20% 48.82%  
   Male 908 1,023 1,599 115 576 12.67% 56.30%    
   Female 886 972 1,370 86 398 9.71% 40.95%    
20 to 24 Years 1,332 1,749 1,513 417 -236 31.31% -13.49%  
   Male 647 839 737 192 -102 29.68% -12.16%    
   Female 685 910 776 225 -134 32.85% -14.73%    
25 to 29 Years 2,065 3,327 2,063 1,262 -1,264 61.11% -37.99%  
   Male 918 1,526 968 608 -558 66.23% -36.57%    
   Female 1,147 1,801 1,095 654 -706 57.02% -39.20%    
30 to 34 Years 2,840 4,556 2,954 1,716 -1,602 60.42% -35.16%  
   Male 1,322 2,138 1,436 816 -702 61.72% -32.83%    
   Female 1,518 2,418 1,518 900 -900 59.29% -37.22%    
35 to 44 Years 3,827 7,500 8,780 3,673 1,280 95.98% 17.07%  
   Male 2,017 3,672 4,080 1,655 408 82.05% 11.11%    
   Female 1,810 3,828 4,700 2,018 872 111.49% 22.78%    
    35 to 39 Years   4,144 4,029   -115   -2.78%  
      Male   2,021 1,837   -184   -9.10%    
      Female   2,123 2,192   69   3.25%    
    40 to 44 Years   3,356 4,751   1,395   41.57%  
      Male   1,651 2,243   592   35.86%    
      Female   1,705 2,508   803   47.10%    
45 to 54 Years 1,999 3,879 7,222 1,880 3,343 94.05% 86.18%  
   Male 1,059 1,938 3,550 879 1,612 83% 83.18%    
   Female 940 1,941 3,672 1,001 1,731 106.49% 89.18%    
    45 to 49 Years   2,350 4,085   1,735   73.83%  
      Male   1,196 2,021   825   68.98%    
      Female   1,154 2,064   910   78.86%    
    50 to 54 Years   1,529 3,137   1,608   105.17%  
      Male   742 1,529   787   106.06%    
      Female   787 1,608   821   104.32%    
55 to 59 Years 623 1,238 1,996 615 758 98.72% 61.23%  
   Male 319 621 984 302 363 94.67% 58.45%    
   Female 304 617 1,012 313 395 102.96% 64.02%    
60 to 64 Years 359 1,025 1,348 666 323 185.52% 31.51%  
   Male 190 493 636 303 143 159.47% 29.01%    
   Female 169 532 712 363 180 214.79% 33.83%    
65 to 74 Years 463 1,374 2,223 911 849 196.76% 61.79%    
   Male 182 585 965 403 380 221.43% 64.96%    
   Female 281 789 1,258 508 469 180.78% 59.44%    
    65 to 69 Years   815 1,166   351   43.07%  
      Male   345 517   172   49.86%    
      Female   470 649   179   38.09%    
    70 to 74 Years   559 1,057   498   89.09%  
      Male   240 448   208   86.67%    
      Female   319 609   290   90.91%    
75 to 84 Years 161 558 1,289 397 731 246.58% 131%  
   Male 57 209 501 152 292 266.67% 139.71%    
   Female 104 349 788 245 439 235.58% 125.79%    
    75 to 79 Years   373 799   426   114.21%  
      Male   143 318   175   122.38%    
      Female   230 481   251   109.13%    
    80 to 84 Years   185 490   305   164.86%  
      Male   66 183   117   177.27%    
      Female   119 307   188   157.98%    
85 Years and Over 38 88 371 50 283 131.58% 321.59%  
   Male 12 31 105 19 74 158.33% 238.71%    
   Female 26 57 266 31 209 119.23% 366.67%    
     
     
     
POPULATION BY AGE      
     
 
   
Year 2000    
Total Population 42,909    
   Male 20,750    
   Female 22,159    
Median Age 37.4    
   Male 36.4    
   Female 38.2    
Under 1 Year 527    
   Male 267    
   Female 260    
1 Year 556    
   Male 285    
   Female 271    
2 Years 541    
   Male 261    
   Female 280    
3 Years 586    
   Male 287    
   Female 299    
4 Years 617    
   Male 320    
   Female 297    
5 Years 657    
   Male 346    
   Female 311    
6 Years 652    
   Male 324    
   Female 328    
7 Years 705    
   Male 360    
   Female 345    
8 Years 737    
   Male 352    
   Female 385    
9 Years 758    
   Male 387    
   Female 371    
10 Years 805    
   Male 396    
   Female 409    
11 Years 773    
   Male 411    
   Female 362    
12 Years 774    
   Male 414    
   Female 360    
13 Years 732    
   Male 368    
   Female 364    
14 Years 761    
   Male 411    
   Female 350    
15 Years 797    
   Male 418    
   Female 379    
16 Years 684    
   Male 367    
   Female 317    
17 Years 742    
   Male 392    
   Female 350    
18 Years 441    
   Male 244    
   Female 197    
19 Years 305    
   Male 178    
   Female 127    
20 Years 261    
   Male 151    
   Female 110    
21 Years 250    
   Male 125    
   Female 125    
22 to 24 Years 1,002    
   Male 461    
   Female 541    
25 to 29 Years 2,063    
   Male 968    
   Female 1,095    
30 to 34 Years 2,954    
   Male 1,436    
   Female 1,518    
35 to 39 Years 4,029    
   Male 1,837    
   Female 2,192    
40 to 44 Years 4,751    
   Male 2,243    
   Female 2,508    
45 to 49 Years 4,085    
   Male 2,021    
   Female 2,064    
50 to 54 Years 3,137    
   Male 1,529    
   Female 1,608    
55 to 59 Years 1,996    
   Male 984    
   Female 1,012    
60 and 61 Years 580    
   Male 268    
   Female 312    
62 to 64 Years 768    
   Male 368    
   Female 400    
65 and 66 Years 474    
   Male 210    
   Female 264    
67 to 69 Years 692    
   Male 307    
   Female 385    
70 to 74 Years 1,057    
   Male 448    
   Female 609    
75 to 79 Years 799    
   Male 318    
   Female 481    
80 to 84 Years 490    
   Male 183    
   Female 307    
85 Years and Over 371    
   Male 105    
   Female 266    
     
Population by Race and Hispanic Origin     
       
 
     
Year 2000    
Total Population 42,909    
   Single-Race classification 42,421    
     White 38,059    
       Under 18 years of age 10,728    
       18 or older 27,331    
     Black or African-American 325    
       Under 18 years of age 88    
       18 or older 237    
     American Indian or Native Alaskan 24    
       Under 18 years of age 11    
       18 or older 13    
     Asian 3,618    
       Under 18 years of age 1,172    
       18 or older 2,446    
     Native Hawaiian or Pacific Islander 6    
       Under 18 years of age      
       18 or older 6    
     Asian or Pacific Islander 3,624    
       Under 18 years of age 1,172    
       18 or older 2,452    
     Other 389    
       Under 18 years of age 147    
       18 or older 242    
   Two or more races classified 488    
     Under 18 years of age 258    
     18 or older 230    
  1,425    
   Hispanic or Latino    
     Under 18 years of age 500    
     18 or older 925    
   Not Hispanic or Latino 41,484    
     Under 18 years of age 11,904    
     18 or older 29,580    
       
Population by Household for Buffalo Grove, Illinois      
       
       
       
Year
1980 1990 2000 Difference Difference Percent Percent    
1990-1980 2000-1990 Change Change    
  1980-1990 1990-2000    
Total Population 22,230 36,427 42,909 14,197 6,482 63.86% 17.79%    
Number of Households 7,001 13,335 15,708 6,334 2,373 90.47% 17.80%    
   With people under 18 present 4,017 5,792 6,848 1,775 1,056 44.19% 18.23%    
   With people 65 or older 512 1,516 2,692 1,004 1,176 196.09% 77.57%    
Population in Households 22,230 36,427 42,673 14,197 6,246 63.86% 17.15%    
   In Family Households 20,866 32,489 37,998 11,623 5,509 55.70% 16.96%    
   In Nonfamily Households 1,364 3,938 4,675 2,574 737 188.71% 18.72%    
Population in Group Quarters 0 0 236 0 236 --N/A--% --N/A--%    
   Institutionalized 0 0 234 0 234 --N/A--% --N/A--%    
   Other 0 0 2 0 2 --N/A--% --N/A--%    
  3.18 2.73 2.72 -0.44 -0.01 -13.97% -0.43%    
Average Household Size    
Number of Households 7,001 13,335 15,708 6,334 2,373 90.47% 17.80%    
   Single-person households 934 2,756 3,473 1,822 717 195.07% 26.02%    
     Male 467 1,090 1,291 623 201 133.40% 18.44%    
     Female 467 1,666 2,182 1,199 516 256.75% 30.97%    
     Householder 65 or older 112 498 1,011 386 513 344.64% 103.01%    
   Multiple-person households 6,067 10,579 12,235 4,512 1,656 74.37% 15.65%    
     With people 65 or older present 400 1,018 1,681 618 663 154.50% 65.13%    
     Family households 5,870 10,018 11,663 4,148 1,645 70.66% 16.42%    
       With people under 18 present 4,003 5,771 6,831 1,768 1,060 44.17% 18.37%    
       With people 65 or older present 398 990 1,639 592 649 148.74% 65.56%    
       Married-couple family 5,394 9,021 10,366 3,627 1,345 67.24% 14.91%    
         With people under 18 present 3,684 5,219 6,041 1,535 822 41.67% 15.75%    
       Male householder family, no wife present 104 222 257 118 35 113.46% 15.77%    
         With people under 18 present 52 104 139 52 35 100% 33.65%    
       Female householder family, no husband present 372 775 1,040 403 265 108.33% 34.19%    
         With people under 18 present 267 448 651 181 203 67.79% 45.31%    
     Non-family households 197 561 572 364 11 184.77% 1.96%    
       With people 65 or older present 2 28 42 26 14 1300% 50%    
       Male householder 135 332 324 197 -8 145.93% -2.41%    
         
       Female householder 62 229 248 167 19 269.35% 8.30%    
       
     
Housing Occupancy and Occupant Characteristics       
       
       
Year
1980 1990 2000 Difference Difference Percent Percent    
1990-1980 2000-1990 Change Change    
  1980-1990 1990-2000    
Housing units 7,862 13,866 16,166 6,004 2,300 76.37% 16.59%  
   Occupied 7,001 13,335 15,708 6,334 2,373 90.47% 17.80%    
     Owner occupied 5,789 11,171 13,682 5,382 2,511 92.97% 22.48%    
     Renter occupied 1,212 2,164 2,026 952 -138 78.55% -6.38%    
   Vacant 861 531 458 -330 -73 -38.33% -13.75%    
    106 73   -33   -31.13%    
Age of householder    
Owner-occupied housing units:    
   15 to 24 years    
   25 to 34 years   2,813 1,662   -1,151   -40.92%    
   35 to 44 years   3,758 4,080   322   8.57%    
   45 to 54 years   2,134 3,802   1,668   78.16%    
   55 to 64 years   1,266 1,883   617   48.74%    
   65 to 74 years   766 1,251   485   63.32%    
   75 years and over   328 931   603   183.84%    
     75 to 84 years   792      
     85 years and over   139      
    236 165   -71   -30.08%    
Renter-occupied housing units    
   15 to 24 years    
   25 to 34 years   1,034 690   -344   -33.27%    
   35 to 44 years   459 519   60   13.07%    
   45 to 54 years   178 361   183   102.81%    
   55 to 64 years   107 144   37   34.58%    
   65 to 74 years   81 78   -3   -3.70%    
   75 years and over   69 69   0   0%    
     75 to 84 years   53      
     85 years and over   16      
  5,635 10,686 12,672 5,051 1,986 89.64% 18.59%    
Race of householder    
Owner-occupied housing units:    
   White    
   Black 30 94 82 64 -12 213.33% -12.77%    
   American Indian, Eskimo, Aluet 4 7 2 3 -5 75% -71.43%    
   Asian and Pacific Islander 106 362 793 256 431 241.51% 119.06%    
     Asian   791      
     Native Hawiian/Pacific Islander   2      
   Other or Multiple 26 22 133 -4 111 -15.38% 504.55%    
  1,160 2,024 1,622 864 -402 74.48% -19.86%    
Renter-occupied housing units    
   White    
   Black 18 53 52 35 -1 194.44% -1.89%    
   American Indian, Eskimo, Aluet 0 3 0 3 -3 --N/A--% -100%    
   Asian and Pacific Islander 22 73 285 51 212 231.82% 290.41%    
     Asian   285      
     Native Hawiian/Pacific Islander   0      
   Other or Multiple 0 11 67 11 56 --N/A--% 509.09%