Census		Estimate									Preliminary
	1989	1990		1991	1992	1993	1994	1995	1996	1997	1998		1999
Washington	31,183	33,554		34,122	35,680	36,421	37,473	38,838	40,838	43,280	45,786		47,897
Adams	24,604	27,561		26,390	27,092	29,714	26,540	26,565	29,287	27,508	27,680		29,664
Asotin	22,897	24,686		25,049	26,265	27,297	27,762	27,874	29,008	29,698	30,504		31,261
Benton	32,593	35,116		36,758	38,970	40,822	42,232	41,919	42,080	42,728	43,262		44,788
Chelan	24,312	26,024		27,117	28,214	29,153	30,008	30,440	32,183	33,264	32,246		33,960
Clallam	25,434	27,598		27,025	27,626	27,786	27,828	28,747	29,567	30,970	29,656		31,038
Clark	31,800	34,111		33,871	35,307	36,775	38,146	39,898	42,228	45,504	46,260		47,768
Columbia	22,418	24,610		23,138	25,110	25,878	23,263	24,436	26,582	24,005	24,939		26,523
Cowlitz	27,866	29,848		30,576	30,539	31,090	32,002	32,971	33,848	34,738	35,692		37,384
Douglas	27,054	28,692		28,636	30,073	30,643	31,332	31,186	32,716	33,102	32,907		34,146
Ferry	25,170	27,189		26,550	26,956	26,996	28,623	27,786	28,521	28,499	27,465		28,888
Franklin	24,604	26,271		25,334	26,782	28,120	27,561	28,269	28,416	27,659	29,533		30,929
Garfield	25,156	26,555		26,267	27,700	28,158	24,556	28,253	30,771	31,781	33,561		35,654
Grant	22,372	24,121		24,615	26,094	27,553	27,258	27,635	29,074	29,422	30,796		32,336
Grays Harbor	23,042	23,965		23,790	24,869	25,037	24,645	25,763	26,229	27,027	27,468		29,106
Island	29,161	30,770		31,403	32,127	33,324	34,514	35,458	37,336	38,504	38,497		40,238
Jefferson	25,197	27,135		27,330	28,307	28,466	28,703	28,760	29,493	30,524	30,536		32,141
King	36,179	39,082		40,240	42,423	43,209	44,845	47,320	50,468	55,290	61,604		64,795
Kitsap	32,043	34,207		34,721	35,470	35,954	36,910	37,077	38,053	39,769	40,988		43,158
Kittitas	20,489	21,826		21,246	22,151	22,711	23,130	23,668	24,639	24,839	25,168		27,000
Klickitat	23,012	24,758		23,482	24,205	25,591	26,397	27,000	29,161	28,358	28,837		30,330
Lewis	24,410	26,136		25,544	26,664	26,954	27,789	28,395	29,317	30,169	29,559		31,244
Lincoln	24,617	26,660		24,933	26,513	27,411	25,736	30,077	32,724	33,351	33,939		35,364
Mason	26,304	27,847		27,722	28,591	28,954	29,204	29,724	30,970	31,916	33,051		34,672
Okanogan	20,303	20,746		21,583	22,671	23,349	24,014	23,367	24,623	23,645	23,673		25,123
Pacific	20,029	21,002		20,512	20,979	20,993	21,216	22,310	23,113	23,671	23,292		24,569
Pend Oreille	20,808	23,058		23,022	24,216	25,379	26,374	26,743	27,476	28,231	28,192		29,345
Pierce	30,412	32,864		33,144	34,565	35,364	36,145	37,343	38,835	40,514	40,598		42,185
San Juan	31,278	33,513		34,265	35,087	35,478	36,845	37,262	39,640	41,367	42,319		44,978
Skagit	28,389	30,281		30,134	31,177	31,522	32,625	33,329	34,575	35,930	36,907		38,756
Skamania	28,778	31,262		31,244	31,973	32,871	33,906	34,290	35,458	36,378	36,275		37,808
Snohomish	36,847	39,214		39,982	42,033	42,862	44,084	45,415	47,701	49,478	50,525		52,063
Spokane	25,769	27,643		28,316	29,639	30,592	31,611	32,817	34,018	35,359	36,560		38,580
Stevens	24,440	25,703		25,924	26,853	27,733	28,478	28,481	28,968	29,983	31,578		33,083
Thurston	30,976	33,077		33,887	35,347	36,114	36,858	37,731	38,830	40,287	41,580		43,408
Wahkiakum	26,969	28,789		27,769	28,970	29,896	30,000	31,516	32,064	33,575	33,109		34,207
Walla Walla	24,414	25,974		25,628	27,060	28,196	28,781	29,762	31,634	32,140	32,578		33,773
Whatcom	28,367	31,442		31,679	32,327	32,624	33,599	34,609	36,243	37,483	38,495		40,637
Whitman	21,674	23,200		23,308	23,999	24,817	24,981	26,059	27,384	28,556	28,921		30,213
Yakima	23,612	25,760		25,386	26,412	27,151	27,867	28,289	29,500	30,287	32,156		33,674

Estimates of median household money income for 1990 through 1997 are based on 1989 federal census money income data and 1989 through 1997 Bureau of Economic Analysis (BEA) county level per capita income data. Estimates for 1998 are based on the 1997-98 payroll data compiled by the state Employment Security Department and the state total personal income data published by BEA. The 1999 estimates are derived by an extrapolating procedure that applies the Office of the Forecast Council's projected 1998-99 state total farm and non-farm personal income growth to the estimated 1998 county median household income levels.

Money income, as defined by the Bureau of Census, includes wage or salary income; self-employment income; interest, dividend, or rental income; social security or public assistance income; retirement or disability income; etc. It excludes some of the income components of personal income defined by the BEA. For example, employer paid pension and medical benefits are included in personal income but not in money income. The median measures the point at which half of all households have more income and half have less.

*Estimates reflect OFM’s updates of county-level average household size