Merrifield Demographics
Total Population 2000	11,635	117,979	48,092
Total Population 2004	12,751	120,803	50,288 (2005)
Total Population 2009	13,761	125,900	53,073 (2010)
Total Households 2000	4,593	43,776	18,410
Total Households 2004	5,056	44,961	n/a
Total Households 2009	5,473	47,000	n/a
2000 Average Household Size	2.52	2.68	2.61
2004 Average Household Size	2.51	2.67	2.59 (2005)
2009 Average Household Size	2.5	2.66	2.59 (2010)
Total Families 2000	2,741	29,348	11,506
Total Families 2004	2,960	29,758	n/a
Total Families 2009	3,153	30,731	n/a
2000 Average Family Size	3.07	3.17	n/a
2004 Average Family Size	3.09	3.17	n/a
2009 Average Family Size	3.1	3.18	n/a
2000 Median Household Income	$62,785	$75,523	n/a
2004 Median Household Income	$76,610	$91,628	n/a
2009 Median Household Income	$96,527	$115,404	n/a
2000 Median Age	31.8	35.8	n/a
2004 Median Age	32.5	37.0	n/a
2009 Median Age	32.7	38.8	n/a