Census tracts · San Mateo County

Census tracts in San Mateo County, California

San Mateo County is divided into 174 census tracts, 2 of them with no residents (water, parks or institutional land). Among the tracts with a reliable estimate, median household income runs from $71,769 in Tract 6121.02 to $250,000 or more in Tract 6134 (ACS 2020-2024 5-year estimates).

Every census tract in San Mateo County

Sort by any column. A tract's number repeats across counties; the GEOID under each name is unique. A ring marks an estimate whose coefficient of variation is over 40%.

Census tracts of San Mateo County, ACS 2020-2024 5-year estimates
Tract 600106081600100Brisbane (88%)5,4745,295±345$156,310$1,240,900$2,6536.9%
Tract 600206081600200Daly City4,3685,004±717$144,000$1,175,600$1,8616.5%
Tract 600306081600300Daly City (93%)4,0574,052±587$159,853$1,183,800$3,2508.0%
Tract 6004.0106081600401Daly City3,2633,131±551$157,083$1,013,500$2,9312.8%
Tract 6004.0206081600402Daly City4,7724,510±956$146,161$1,001,600$3,28010.2%
Tract 6005.0106081600501Daly City3,9003,482±643$134,118$926,200$3,0807.6%
Tract 6005.0206081600502Daly City (95%)3,7484,196±907$136,182$1,122,300$1,8617.2%
Tract 600606081600600Daly City5,4644,480±924$100,240$985,100$2,12215.6%
Tract 6007.0106081600701Daly City4,8843,135±506$93,077$1,023,000$2,1498.4%
Tract 6007.0206081600702Daly City2,9582,630±732$119,803$1,236,400$1,8787.3%
Tract 600806081600800Daly City7,6487,393±1,051$91,042$1,157,500$2,65615.1%
Tract 600906081600900Daly City (85%)4,0393,887±598$153,438$1,333,900$3,500 or more7.3%
Tract 601006081601000Daly City (98%)6,8267,500±916$126,406$1,164,700$2,7405.7%
Tract 601106081601100Daly City5,9176,162±730$161,439$1,204,700$3,500 or more2.2%
Tract 601206081601200Broadmoor (60%)6,7466,988±1,039$161,293$1,250,000$2,7583.7%
Tract 6013.0106081601301Daly City3,9823,662±681$82,232$1,036,500$1,9119.4%
Tract 6013.0206081601302Daly City (54%)4,6294,581±988$98,417$961,700$1,9672.8%
Tract 601406081601400Daly City7,1297,613±1,106$118,712$1,145,900$2,9087.7%
Tract 6015.0106081601501Daly City5,1945,436±800$190,081$1,169,300$3,5006.7%
Tract 6015.0206081601502Daly City5,4795,046±523$101,563$1,480,000$2,4406.5%
Tract 6016.0106081601601Colma (65%)2,8842,825±358$122,672$314,800$2,0806.0%
Tract 6016.0306081601603Daly City5,9235,905±609$108,476$1,137,000$3,15010.1%
Tract 6016.0406081601604Daly City2,4312,461±404$137,727$655,300$2,7992.0%
Tract 6016.0506081601605Daly City6,1575,700±616$142,406$1,155,000$2,4487.5%
Tract 601706081601700South San Francisco4,3134,461±484$186,974$1,076,300$3,1645.5%
Tract 601806081601800South San Francisco (93%)6,3666,025±698$143,138$1,325,600$3,0674.9%
Tract 6019.0106081601901South San Francisco4,1173,951±541$103,472$1,280,300$2,4084.3%
Tract 6019.0206081601902South San Francisco5,8414,960±817$125,096$951,600$2,7462.3%
Tract 6020.0106081602001South San Francisco4,7304,147±495$176,389$1,396,300$2,2404.8%
Tract 6020.0206081602002South San Francisco (84%)3,2333,783±767$162,143$1,114,700$3,2501.7%
Tract 602106081602100South San Francisco3,7103,262±520$82,679$1,278,000$2,47514.2%
Tract 6022.0106081602201South San Francisco4,9295,250±839$92,617$1,170,500$2,4455.9%
Tract 6022.0206081602202South San Francisco3,8573,054±507$92,191$949,500$2,36510.6%
Tract 602306081602300South San Francisco4,2384,245±731$146,750$1,144,800$3,05412.4%
Tract 602406081602400South San Francisco (87%)6,9247,339±663$120,699$1,237,400$2,8218.8%
Tract 602506081602500South San Francisco5,1565,331±656$161,279$1,295,800$3,500 or more6.9%
Tract 6026.0106081602601South San Francisco4,2763,932±470$149,044$1,118,200$3,500 or more5.1%
Tract 6026.0206081602602South San Francisco4,0344,289±1,089$170,274$954,100$3,2236.9%
Tract 602706081602700Pacifica6,0805,792±600$162,458$1,332,400$3,0196.9%
Tract 602806081602800Pacifica4,6394,892±604$189,263$1,133,700$3,4576.8%
Tract 602906081602900Pacifica (98%)3,9583,533±529$143,287$1,235,200$3,1974.6%
Tract 603006081603000Pacifica (99%)4,5974,361±486$146,000$1,254,600$2,8264.4%
Tract 603106081603100Pacifica (98%)3,3063,377±449$220,250$1,332,200not published8.1%
Tract 603206081603200Pacifica (83%)3,9663,600±478$163,882$1,287,100$3,500 or more6.3%
Tract 603306081603300Pacifica (89%)6,5686,413±726$158,819$1,234,000$3,500 or more5.3%
Tract 603406081603400Pacifica (95%)5,5615,306±599$124,564$1,287,500$3,500 or more4.2%
Tract 603706081603700San Bruno5,6675,356±521$140,670$1,383,900$3,500 or more7.4%
Tract 6038.0106081603801San Bruno2,2912,021±249$100,893$621,600$2,3789.0%
Tract 6038.0206081603802San Bruno5,2675,518±718$150,054$1,547,300$3,0907.4%
Tract 603906081603900San Bruno5,5905,716±880$127,155$1,315,600$2,81010.9%
Tract 604006081604000San Bruno3,3143,375±394$174,850$1,304,100$3,500 or more2.5%
Tract 6041.0206081604102San Bruno3,5653,030±467$100,789$659,500$2,7918.2%
Tract 6041.0306081604103San Bruno4,8474,269±803$112,439$1,120,600$2,4573.6%
Tract 6041.0406081604104San Bruno3,2673,372±1,038$130,077$851,200$2,3495.7%
Tract 604206081604200San Bruno (89%)4,1973,772±897$175,882$989,500$2,0552.4%
Tract 604406081604400Millbrae (98%)5,2875,131±476$133,654$1,204,500$3,0837.1%
Tract 604506081604500Millbrae3,6483,574±396$188,750$1,989,200$2,7813.3%
Tract 604606081604600Millbrae (79%)2,8082,587±287$192,054$2,000,000 or more$3,500 or more3.6%
Tract 604706081604700Millbrae2,8792,793±374$226,667$2,000,000 or more$3,500 or more2.3%
Tract 604806081604800Millbrae5,2075,464±659$158,235$2,000,000 or more$3,27311.2%
Tract 604906081604900Millbrae3,3873,140±476$148,421$2,000,000 or more$3,500 or more3.3%
Tract 605006081605000Burlingame (74%)8,6038,273±903$222,614$2,000,000 or more$2,7424.3%
Tract 605106081605100Burlingame3,3393,108±397$172,054$2,000,000 or more$2,4836.9%
Tract 605206081605200Burlingame3,8163,764±412$218,818$2,000,000 or more$3,2572.8%
Tract 605306081605300Burlingame5,0224,898±534$170,598$2,000,000 or more$2,71812.8%
Tract 605406081605400Burlingame6,3646,557±863$166,972$2,000,000 or more$3,3655.4%
Tract 6055.0106081605501Burlingame2,9992,918±534$101,450$1,510,600$2,39513.3%
Tract 6055.0206081605502Burlingame2,4792,374±558$205,372$1,659,600$2,8336.1%
Tract 605606081605600Hillsborough (92%)5,8326,204±548$250,000 or more$2,000,000 or more$3,500 or more7.2%
Tract 605706081605700Hillsborough (98%)5,5634,929±547$250,000 or more$2,000,000 or more$3,500 or more2.1%
Tract 605806081605800San Mateo2,6212,634±474$213,667$2,000,000 or more$3,2035.5%
Tract 6059.0106081605901San Mateo3,2672,761±367$149,231$1,434,800$2,74113.0%
Tract 6059.0206081605902San Mateo2,9892,974±592$98,299$1,067,900$2,2007.7%
Tract 606006081606000San Mateo5,2425,538±751$108,438$841,800$2,56414.7%
Tract 606106081606100San Mateo4,3804,967±794$135,972$1,221,000$3,12612.3%
Tract 6062.0106081606201San Mateo4,0834,100±863$87,050$1,222,700$2,83216.7%
Tract 6062.0206081606202San Mateo3,8543,428±512$138,250$1,092,900$3,0623.5%
Tract 606306081606300San Mateo4,1593,898±463$156,820$1,388,400$3,29912.6%
Tract 606406081606400San Mateo5,2614,506±666$130,521$1,350,500$3,0838.1%
Tract 606506081606500San Mateo3,7133,544±382$211,750$2,000,000 or more$3,500 or more1.6%
Tract 606606081606600San Mateo3,7403,479±372$170,313$2,000,000 or more$3,500 or more3.1%
Tract 606706081606700San Mateo (97%)2,6172,485±253$184,973$2,000,000 or more$3,500 or more2.5%
Tract 606806081606800Baywood Park (59%)3,3443,559±514$201,563$2,000,000 or more$3,500 or more2.7%
Tract 606906081606900Highlands (91%)2,4462,496±382$250,000 or more$2,000,000 or more$3,500 or more3.9%
Tract 607006081607000San Mateo3,5823,344±359$222,768$2,000,000 or more$2,9291.7%
Tract 607106081607100San Mateo2,9672,726±645$250,000 or more$2,000,000 or more$3,500 or more4.6%
Tract 607206081607200San Mateo4,9714,697±679$126,314$1,834,600$2,83812.1%
Tract 607306081607300San Mateo3,6423,511±504$243,281$2,000,000 or more$3,500 or more5.5%
Tract 607406081607400San Mateo4,9194,662±700$148,194$1,248,200$2,4995.7%
Tract 607506081607500San Mateo6,6136,569±659$233,378$1,673,100$3,500 or more7.3%
Tract 607606081607600San Mateo4,2694,566±460$133,295$1,592,900$2,6846.9%
Tract 6077.0106081607701San Mateo3,9984,609±602$160,893$1,332,200$3,34710.5%
Tract 6077.0206081607702San Mateo2,8932,863±362$146,607$1,371,900$3,500 or more21.5%
Tract 607806081607800San Mateo3,1983,328±384$186,106$1,450,600$3,500 or more5.3%
Tract 607906081607900San Mateo (97%)3,5183,089±316$152,610$1,104,200$3,4465.8%
Tract 6080.0106081608001Foster City3,5343,387±364$192,981$1,411,500$3,3243.4%
Tract 6080.0206081608002Foster City3,7283,665±440$242,826$1,803,700$3,500 or more1.5%
Tract 6080.1306081608013Foster City4,1883,744±338$180,156$1,919,700$3,500 or more5.5%
Tract 6080.2306081608023Foster City2,5312,348±310$250,000 or more$2,000,000 or more$3,500 or more3.1%
Tract 6080.2406081608024Foster City3,0253,200±594$204,659$1,609,700$3,500 or more1.3%
Tract 6080.2506081608025Foster City5,9316,212±871$149,896$1,354,700$3,500 or more7.4%
Tract 608106081608100Foster City3,6453,325±353$209,074$1,617,600$3,3594.5%
Tract 608206081608200Foster City3,7493,606±429$233,094$1,785,500$3,500 or more4.2%
Tract 608306081608300Foster City3,4743,305±420$196,101$2,000,000 or more$3,1173.3%
Tract 608406081608400San Mateo5,6645,129±897$145,089$1,408,500$3,3128.2%
Tract 6085.0106081608501San Mateo5,0135,050±1,038$177,708$1,787,700$2,9554.6%
Tract 6085.0206081608502San Mateo2,7502,623±311$143,826$1,224,200$3,19710.8%
Tract 608606081608600Belmont4,7294,484±582$146,389$1,746,700$2,7358.4%
Tract 608706081608700Belmont7,6707,142±637$238,466$2,000,000 or more$2,9463.5%
Tract 608806081608800Belmont (97%)6,1796,046±736$250,000 or more$2,000,000 or more$3,500 or more1.6%
Tract 608906081608900Belmont (77%)7,2616,953±848$177,895$2,000,000 or more$2,89712.8%
Tract 609006081609000Belmont2,8082,983±423$203,636$2,000,000 or more$2,3369.1%
Tract 609106081609100San Carlos (95%)1,6471,541±183$242,750$1,683,500$3,500 or more5.2%
Tract 6092.0106081609201San Carlos3,9023,456±289$165,583$2,000,000 or more$2,8333.6%
Tract 6092.0206081609202San Carlos4,3575,161±536$186,333$1,938,800$2,6595.4%
Tract 609306081609300San Carlos3,4993,428±339$250,000 or more$2,000,000 or more$2,8612.1%
Tract 609406081609400San Carlos3,4583,251±334$250,000 or more$2,000,000 or more$3,500 or more1.3%
Tract 609506081609500San Carlos (98%)5,1614,686±508$250,000 or more$2,000,000 or more$2,9312.3%
Tract 6096.0106081609601San Carlos (73%)3,2433,460±483$250,000 or more$2,000,000 or more$2,5438.4%
Tract 6096.0206081609602San Carlos1,8181,719±230$250,000 or more$2,000,000 or more$3,500 or more1.9%
Tract 6096.0306081609603San Carlos (54%)5,5104,813±341$247,422$2,000,000 or more$3,500 or more4.1%
Tract 609706081609700Emerald Lake Hills (68%)4,4624,608±500$250,000 or more$2,000,000 or more$3,500 or more4.8%
Tract 609806081609800Redwood City (76%)4,7334,491±432$250,000 or more$2,000,000 or more$3,500 or more2.4%
Tract 609906081609900Redwood City3,0682,955±587$250,000 or more$2,000,000 or more$3,500 or more3.0%
Tract 610006081610000Redwood City4,7824,477±752$164,852$2,000,000$2,7413.8%
Tract 610106081610100Redwood City2,4892,524±316$128,472$1,516,600$2,3397.3%
Tract 6102.0106081610201Redwood City5,5015,596±1,035$74,988$996,700$2,3287.7%
Tract 6102.0206081610202Redwood City5,1185,064±356$185,920not published$3,500 or more10.5%
Tract 6102.0306081610203Redwood City3,2442,594±379$77,604$952,400$2,3768.8%
Tract 6103.0206081610302Redwood City (93%)4,7964,823±873$142,212$276,300$3,500 or more5.4%
Tract 6103.0306081610303Redwood City8,2787,229±495$222,107$1,990,100$3,500 or more2.9%
Tract 6103.0406081610304Redwood City4,5034,444±631$200,426$1,513,400$3,500 or more4.6%
Tract 610406081610400Redwood City5,5805,447±905$120,453$1,278,100$2,4346.7%
Tract 610506081610500North Fair Oaks (88%)4,7374,404±827$86,862$1,070,300$2,07919.9%
Tract 6106.0106081610601North Fair Oaks5,7975,919±1,445$98,167$916,100$2,31410.2%
Tract 6106.0206081610602North Fair Oaks3,4032,777±423$157,250$1,820,900$3,0717.8%
Tract 610706081610700Redwood City (98%)5,2006,302±1,101$146,476$1,884,700$2,9147.0%
Tract 610806081610800Redwood City4,6644,426±769$105,293$980,000$2,7729.7%
Tract 6109.0106081610901Redwood City3,1152,954±696$142,793$1,519,800$2,5749.4%
Tract 6109.0206081610902Redwood City3,6312,819±591$134,814$1,432,400$2,75612.9%
Tract 611006081611000Redwood City5,9786,515±1,049$140,426$1,619,800$3,0178.1%
Tract 611106081611100Redwood City (90%)6,4236,347±664$185,875$2,000,000 or more$3,500 or more3.0%
Tract 611206081611200Redwood City3,0132,838±316$233,097$2,000,000 or more$3,500 or more3.1%
Tract 611306081611300Redwood City (39%)4,8914,827±669$229,612$2,000,000 or more$3,2165.7%
Tract 611406081611400Atherton4,4534,215±297$250,000 or more$2,000,000 or more$3,500 or more7.9%
Tract 611506081611500Atherton2,7352,778±296$250,000 or more$2,000,000 or more$3,500 or more1.9%
Tract 611606081611600Menlo Park2,4662,431±338$250,000 or more$2,000,000 or more$3,500 or more4.1%
Tract 611706081611700Menlo Park6,4376,627±827$158,333$1,130,200$3,4223.4%
Tract 611806081611800East Palo Alto (63%)4,4814,822±689$137,740$1,050,600$3,2328.9%
Tract 6119.0106081611901East Palo Alto4,4654,230±720$121,392$1,133,800$1,9968.3%
Tract 6119.0206081611902East Palo Alto6,3357,054±1,076$132,863$1,300,600$2,58410.5%
Tract 6120.0106081612001East Palo Alto4,1203,864±680$130,741$919,200$2,7878.5%
Tract 6120.0206081612002East Palo Alto3,2493,224±655$76,047$964,100$1,96017.1%
Tract 6121.0106081612101East Palo Alto (63%)4,1743,949±814$123,472$2,000,000 or more$2,0899.4%
Tract 6121.0206081612102East Palo Alto4,1873,129±776$71,769$1,057,200$2,2399.0%
Tract 612506081612500Menlo Park4,7283,937±636$165,521$2,000,000 or more$3,2515.2%
Tract 612606081612600Menlo Park4,6534,317±450$166,685$2,000,000 or more$2,8496.8%
Tract 612706081612700Menlo Park2,2912,078±243$250,000 or more$2,000,000 or more$3,500 or more4.4%
Tract 612806081612800Menlo Park (82%)3,3543,126±480$250,000 or more$2,000,000 or more$3,500 or more4.8%
Tract 612906081612900West Menlo Park (81%)4,7284,517±515$250,000 or more$2,000,000 or more$3,500 or more2.2%
Tract 613006081613000Menlo Park (59%)3,2793,245±522$250,000 or more$2,000,000 or more$3,500 or more2.3%
Tract 613206081613200Portola Valley (53%)6,8466,481±590$250,000 or more$2,000,000 or more$3,500 or more4.4%
Tract 613306081613300Woodside2,7592,801±326$250,000 or more$2,000,000 or more$3,500 or more5.4%
Tract 613406081613400Woodside (64%)3,1343,077±336$250,000 or more$2,000,000 or more$3,500 or more2.7%
Tract 6135.0106081613501Half Moon Bay (39%)4,1484,379±566$172,869$1,398,300$3,1455.1%
Tract 6135.0206081613502El Granada (88%)6,0475,806±831$177,083$1,471,300not published6.6%
Tract 613606081613600Moss Beach (52%)6,0535,600±1,036$163,250$1,364,100$3,0616.1%
Tract 6137.0106081613701Half Moon Bay (99%)4,3123,796±581$160,417$1,630,100not published3.2%
Tract 6137.0206081613702Half Moon Bay (46%)4,8994,278±751$112,609$1,250,000$1,5349.2%
Tract 613806081613800La Honda (10%)4,2994,356±663$222,881$1,114,800$1,16212.5%
Tract 613906081613900Menlo Park (86%)5,9635,974±702$238,953$2,000,000 or more$2,57311.9%
Tract 614006081614000San Bruno (95%)6,1726,299±609$212,067$1,582,300$3,1472.5%
Tract 984306081984300–00±14not publishednot publishednot published–
Tract 990106081990100Foster City (26%)00±14not publishednot publishednot published–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); place = the place holding most of the tract's 2020 census blocks · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections